Error 500 - white site. no connection with app

[dklueh79]

nextcloud 13:

/nextcloud/index.php/apps/ownnote/api/v0.2/ownnote/remoteindex HTTP/1.1" 500 7193 "-" "Dalvik/2.1.0 (Linux; U; Android 7.0; SM-G930F Build/NRD90M)"

No use within nextcloud webinterface.
Android App can‘t connect, generates an 500, tool

[JimboJoe]

Hi,
I've just upgraded my Nextcloud instance from version 12.0.4 to version 13.0.1.
Everything went smoothly, except ownnote which shows a blank screen.
I've updated the ownnote app to the latest version in master to include fixes for NC13.
The error message:

2018/03/24 15:47:44 [error] 22638#22638: *113439 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Call to undefined method OCA\OwnNote\Lib\Backend::getSourcePath() in /var/www/nextcloud/lib/private/Files/Storage/Local.php on line 123" while reading response header from upstream, client: 192.168.1.254, server: myhostname, request: "GET /index.php/apps/ownnote/ajax/v0.2/ownnote/ajaxindex?_=1521902862390 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm-nextcloud.sock:", host: "myhostname"```

Could you please advise?

Thanks!

[lwinch2006]

The same issue for me as for @JimboJoe. Maybe it is because I have old PHP version. 5.6 contra modern version 7?

[JimboJoe]

I'm using PHP 5.6 as well.

[lwinch2006]

Updated to PHP 7.0, no luck, still white background without form.