Error's on server start

[Reaviik]

[18:25:06 ERROR]: Couldn't parse element loot_tables:advgenerators:blocks/eu_output_iv
[18:25:06 ERROR]: Couldn't parse element loot_tables:advgenerators:blocks/eu_output_hv
[18:25:06 ERROR]: Couldn't parse element loot_tables:advgenerators:blocks/eu_output_ev
[18:25:07 ERROR]: Couldn't parse element loot_tables:advgenerators:blocks/eu_output_mv
[18:25:07 ERROR]: Couldn't parse element loot_tables:advgenerators:blocks/eu_output_lv

for all ->
com.google.gson.JsonSyntaxException: Expected name to be an item, was unknown string 'advgenerators:eu_output_lv'