500 Internal Server Error on some of the menu's

[liors1111]

Describe the bug
hello,
i have some issue with some of the menu's : example l try to go in the Movie list , i got 500 Internal Server Error XHRGEThttp://x.x.x.x/stalker_portal/server/adm/new-video-club/video-list-json? draw=1&columns%5B0.........
[HTTP/1.1 500 Internal Server Error 225ms]

also when i try to edit tv-channels i got: 500 Internal Server Error

http://x.x.x.x/stalker_portal/server/adm/tv-channels/edit-channel

i using a linux ubantu 16.04.07 LTS
can you help on this one?
thanks

[SlaSerX]

check web server logs