Labels not showing up on Map

[gyenyame400]

Hi,
I'm trying to re-produce the following tutorial:
https://vts-geospatial.org/tutorials/mars-peaks-and-valleys-searchable-nomenclature.html
The tutorial is about showing up labels on a mapproxy

I downloaded the Mars shapefile from this link:
https://webarchive.library.unt.edu/web/20130228002148/http://planetarynames.wr.usgs.gov/shapefiles/MARS_nomenclature.zip

I did as instructed in the tutorial.
When I start mapproxy, it sees the Resource </mars-case-study/iau-mars-nomenclature>,
and the style.
However, when I launch the browser, it loads the map (Mars DEM) correctly but without the labels.
Here's a snapshot of the mapproxy log file:
`2022-08-29 12:51:11 I3 [16218(main)]: Loaded configuration from "/etc/vts/mapproxy/mapproxy.conf". {program.cpp:configureImpl():551}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Config:
store.path = "/var/vts/mapproxy/store"
http.listen = 0.0.0.0:3070
http.threadCount = 4
http.client.threadCount = 1
http.enableBrowser = true
core.threadCount = 4
gdal.processCount = 4
gdal.tmpRoot = "/var/vts/mapproxy/gdaltmp"
resource-backend.updatePeriod = 300
resource-backend.root = "/var/vts/mapproxy/datasets"
resource-backend.freeze = [surface]

resource-backend.purgeRemoved = false
http.externalUrl = http://localhost:3070/
resource-backend.type = conffile
resource-backend.path = "/etc/vts/mapproxy/resources.json"

{main.cpp:configure():314}
2022-08-29 12:51:11 I4 [16218(main)]: [mapproxy] Service mapproxy/test/ starting. {service.cpp:operator()():512}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Trying to run under vts:vts. {service.cpp:switchPersona():85}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Switching to gid <1001>. {service.cpp:switchPersona():120}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Setting supplementary groups for user . {service.cpp:switchPersona():131}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Switching to uid <1001>. {service.cpp:switchPersona():143}
2022-08-29 12:51:11 I3 [16218(main)]: [mapproxy] Run under vts:vts. {service.cpp:switchPersona():153}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/examples.d/basemap-at-photo.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/examples.d/srtm1-n47-e013.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/a-3d-mountain-map.d/peaklist-org-ultras.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/iau-mars-nomenclature.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 W2 [16218(main)]: Resource </mars-case-study/iau-mars-nomenclature> doesn't need lod/tile ranges; ignored. {resource.cpp:parseDefinition():92}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/mars-mola-dem.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(main)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/mars-viking-mdim21.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame earth-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame mars-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame melown2015. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame mercury-provisional. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame pluto-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame ppspace. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame tms-global-geodetic. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register tms/tms-raster-patchwork generator for reference frame webmerc-projected. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame earth-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <earth-qsc/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame mars-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <mars-qsc/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame melown2015. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <melown2015/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame mercury-provisional. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <mercury-provisional/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame pluto-qsc. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <pluto-qsc/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame ppspace. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <ppspace/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame tms-global-geodetic. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <tms-global-geodetic/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(main)]: About to register surface/surface-spheroid generator for reference frame webmerc-projected. {generators.cpp:registerSystemGenerators():229}
2022-08-29 12:51:11 I2 [16220(gdal)]: Started GDAL warper manager process. {gdalsupport.cpp:runManager():624}
2022-08-29 12:51:11 I2 [16218(main)]: Ready to serve resource <webmerc-projected/.system/surface-spheroid> (type <surface/surface-spheroid>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Spawned prepare worker id:3. {generators.cpp:worker():176}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Preparing <earth-qsc/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <earth-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(core:4)]: Spawned worker id:4. {core.cpp:worker():131}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Spawned prepare worker id:5. {generators.cpp:worker():176}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Preparing <mars-qsc/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <mars-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(core:1)]: Spawned worker id:1. {core.cpp:worker():131}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <mars-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <earth-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Preparing <mercury-provisional/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <mercury-provisional/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <mercury-provisional/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Preparing <pluto-qsc/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <pluto-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <pluto-qsc/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Preparing <ppspace/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <ppspace/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16232(gdal:1)]: Spawned GDAL worker id:1. {gdalsupport.cpp:worker():867}
2022-08-29 12:51:11 I2 [16218(prepare:3)]: Ready to serve resource <ppspace/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(shttp:2)]: Spawned HTTP server worker id:2. {http.cpp:worker():236}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Preparing <melown2015/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16238(gdal:3)]: Spawned GDAL worker id:3. {gdalsupport.cpp:worker():867}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <melown2015/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <melown2015/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Preparing <tms-global-geodetic/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16237(gdal:2)]: Spawned GDAL worker id:2. {gdalsupport.cpp:worker():867}
2022-08-29 12:51:11 I2 [16218(prepare:1)]: Spawned prepare worker id:1. {generators.cpp:worker():176}
2022-08-29 12:51:11 I2 [16218(prepare:1)]: Preparing <webmerc-projected/.system/tms-raster-patchwork>. {tms-raster-synthetic.cpp:prepare_impl():81}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <tms-global-geodetic/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:1)]: Ready to serve resource <webmerc-projected/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:1)]: Ready to serve resource <webmerc-projected/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(core:3)]: Spawned worker id:3. {core.cpp:worker():131}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/examples.d/basemap-at-photo.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Ready to serve resource <tms-global-geodetic/.system/tms-raster-patchwork> (type <tms/tms-raster-patchwork>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(shttp:3)]: Spawned HTTP server worker id:3. {http.cpp:worker():236}
2022-08-29 12:51:11 I2 [16218(prepare:4)]: Spawned prepare worker id:4. {generators.cpp:worker():176}
2022-08-29 12:51:11 I2 [16218(core:2)]: Spawned worker id:2. {core.cpp:worker():131}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/examples.d/srtm1-n47-e013.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(chttp:1)]: Spawned HTTP client worker id:1. {client.cpp:run():600}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/a-3d-mountain-map.d/peaklist-org-ultras.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/iau-mars-nomenclature.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 W2 [16218(updater)]: Resource </mars-case-study/iau-mars-nomenclature> doesn't need lod/tile ranges; ignored. {resource.cpp:parseDefinition():92}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/mars-mola-dem.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16218(updater)]: Loading resources from file "/etc/vts/mapproxy/mars-case-study.d/mars-viking-mdim21.json" included from "/etc/vts/mapproxy/resources.json". {resource.cpp:operator()():218}
2022-08-29 12:51:11 I2 [16239(gdal:4)]: Spawned GDAL worker id:4. {gdalsupport.cpp:worker():867}
2022-08-29 12:51:11 I2 [16218(updater)]: Updating resources. {generators.cpp:update():327}
2022-08-29 12:51:11 I2 [16218(updater)]: Ready to serve resource <mars-qsc/mars-case-study/iau-mars-nomenclature> (type <geodata/geodata-vector>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(updater)]: Ready to serve resource <mars-qsc/mars-case-study/mars-mola-dem> (type <surface/surface-dem>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(updater)]: Ready to serve resource <melown2015/a-3d-mountain-map/peaklist-org-ultras> (type <geodata/geodata-vector>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(prepare:2)]: Spawned prepare worker id:2. {generators.cpp:worker():176}
2022-08-29 12:51:11 I2 [16218(shttp:1)]: Spawned HTTP server worker id:1. {http.cpp:worker():236}
2022-08-29 12:51:11 W3 [16218(updater)]: Definition of resource <melown2015/examples/srtm1-n47-e013> differs from the one stored in store at "/var/vts/mapproxy/store/melown2015/examples/srtm1-n47-e013"; using stored definition. {generator.cpp:Generator():139}
2022-08-29 12:51:11 I2 [16218(updater)]: Ready to serve resource <melown2015/examples/srtm1-n47-e013> (type <surface/surface-dem>). {generator.cpp:makeReady():192}
2022-08-29 12:51:11 I2 [16218(updater)]: Resources updated. {generators.cpp:update():457}
2022-08-29 12:51:11 I3 [16218(updater)]: Ready to serve. {generators.cpp:update():460}
2022-08-29 12:51:11 I2 [16218(prepare:1)]: Preparing <mars-qsc/mars-case-study/mars-viking-mdim21>. {tms-raster.cpp:prepare_impl():146}
2022-08-29 12:51:11 I2 [16218(prepare:5)]: Preparing <melown2015/examples/basemap-at-ophoto>. {tms-raster.cpp:prepare_impl():146}
2022-08-29 12:51:12 I2 [16218(shttp:4)]: Spawned HTTP server worker id:4. {http.cpp:worker():236}
2022-08-29 12:51:12 I2 [16218(prepare:5)]: Ready to serve resource <melown2015/examples/basemap-at-ophoto> (type <tms/tms-raster>). {generator.cpp:makeReady():192}
2022-08-29 12:51:12 I2 [16218(prepare:1)]: Ready to serve resource <mars-qsc/mars-case-study/mars-viking-mdim21> (type <tms/tms-raster>). {generator.cpp:makeReady():192}
2022-08-29 12:51:46 I2 [16218(shttp:2)]: [conn:1] HTTP "GET /mars-qsc/geodata/ HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:46 I3 [16218(shttp:2)]: [conn:1] HTTP "GET /mars-qsc/geodata/ HTTP/1.1" 200 440. {http.cpp:postLog():326}
2022-08-29 12:51:49 I2 [16218(shttp:1)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/ HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:49 I3 [16218(shttp:1)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/ HTTP/1.1" 200 484. {http.cpp:postLog():326}
2022-08-29 12:51:50 I2 [16218(shttp:4)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/ HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:50 I3 [16218(shttp:4)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/ HTTP/1.1" 200 851. {http.cpp:postLog():326}
2022-08-29 12:51:51 I2 [16218(shttp:2)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/mapConfig.json HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:51 I3 [16218(shttp:2)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/mapConfig.json HTTP/1.1" 200 6636. {http.cpp:postLog():326}
2022-08-29 12:51:51 I2 [16218(shttp:3)]: [conn:1] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/boundlayer.json HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:51 I3 [16218(shttp:3)]: [conn:1] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/boundlayer.json HTTP/1.1" 200 505. {http.cpp:postLog():326}
2022-08-29 12:51:51 I2 [16218(shttp:4)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/freelayer.json HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:51 I3 [16218(shttp:4)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/freelayer.json HTTP/1.1" 200 748. {http.cpp:postLog():326}
2022-08-29 12:51:51 I2 [16218(shttp:1)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/style.json HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:51 I3 [16218(shttp:1)]: [conn:1] HTTP "GET /mars-qsc/geodata/mars-case-study/iau-mars-nomenclature/style.json HTTP/1.1" 200 744. {http.cpp:postLog():326}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:1] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/1-0-0.meta?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:2)]: [conn:1] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/1-0-0.meta?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:4)]: [conn:2] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-0-0.meta?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:3)]: [conn:2] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-0-0.meta?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:3] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-1.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:1)]: [conn:3] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-1.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:4] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-0-1.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:2)]: [conn:4] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-0-1.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:2)]: [conn:5] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-2-1.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:1)]: [conn:5] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-2-1.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:6] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-2.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:1)]: [conn:6] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-2.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:2)]: [conn:7] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-1.nav?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:2)]: [conn:7] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/2-1-1.nav?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:4)]: [conn:8] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/3-3-3.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:1)]: [conn:8] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/3-3-3.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:2)]: [conn:13] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-3-3.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:2)]: [conn:13] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-3-3.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:12] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-2-3.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I2 [16218(shttp:4)]: [conn:11] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-3-2.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:1)]: [conn:12] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-2-3.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I3 [16218(shttp:2)]: [conn:11] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-3-2.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:51:52 I2 [16218(shttp:3)]: [conn:10] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-2-4.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:51:52 I3 [16218(shttp:4)]: [conn:10] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/3-2-4.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:4)]: [conn:15] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/4-4-4.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:15] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/4-4-4.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:1)]: [conn:16] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/4-9-4.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:16] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/4-9-4.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:1)]: [conn:17] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-6.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:3)]: [conn:17] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-6.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:2)]: [conn:18] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-7-5.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:1)]: [conn:18] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-7-5.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:1)]: [conn:19] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-4-5.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:19] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-4-5.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:2)]: [conn:20] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-5.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:3)]: [conn:20] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-5.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:1)]: [conn:21] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-6-7.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:21] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-6-7.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:3)]: [conn:22] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-7.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:22] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-5-7.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:4)]: [conn:23] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-6-4.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:2)]: [conn:23] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-6-4.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:2)]: [conn:24] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/5-11-10.bin?0 HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:1)]: [conn:24] HTTP "GET /mars-qsc/surface/mars-case-study/mars-mola-dem/5-11-10.bin?0 HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:1)]: [conn:25] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-8-6.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:3)]: [conn:25] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/4-8-6.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:14 I2 [16218(shttp:2)]: [conn:26] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-11-11.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:14 I3 [16218(shttp:1)]: [conn:26] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-11-11.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:15 I2 [16218(shttp:4)]: [conn:27] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-10-12.mask HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:15 I3 [16218(shttp:3)]: [conn:27] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-10-12.mask HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
2022-08-29 12:55:15 I2 [16218(shttp:2)]: [conn:28] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-12-11.jpg HTTP/1.1". {http.cpp:prelogAndProcess():313}
2022-08-29 12:55:15 I3 [16218(shttp:3)]: [conn:28] HTTP "GET /mars-qsc/tms/mars-case-study/mars-viking-mdim21/5-12-11.jpg HTTP/1.1" 500 310 [No response sent.]. {http.cpp:postLog():333}
`

Am I missing something?
Thanks.

[gyenyame400]

After running some of the examples in the demos, I found the issues to be:

• In /etc/vts/vtsd/vtsd.conf, the config should be changed as follows (NOT as indicated in the tutorial):

#[location</stylesheet>]
[location<stylesheet>]
root = /var/vts/store
match = regex

-The stylesheet should be changed to put all attribute-variables in CAPITAL LETTERS and add the label-source json attribute:

{
    "layers": {
        "point-labels": {
        "filter": ["<=","$DIAMETER",2],
        "label": true,
        "label-size": 20,
        "zbuffer-offset": [-1,0,0],
        "culling": 90,
        "label-source": "$FEATURE",/*ADDED*/
        "visibility-abs": [0,120000]
        },
        "labels-size0": {
            "filter": [">","$DIAMETER",2],
            "label": true,
            "label-size": 20,
            "zbuffer-offset": [-1,0,0],
            "culling": 90,
            "label-source": "$FEATURE",/*ADDED*/
            "visibility-rel": [{"str2num":"$DIAMETER"}, 1000, 0.08, 0.8]
        }
    }
}

-Stream all resources from the same server and port (e.g. using NGINX reverse-proxy feature) to avoid cross-domain Javascript errors