Zabbix dashboards blank page after update to 7.0 LTS

[comboloid]

Hello!!

Today i upgraded Zabbix from 6.0 LTS to 7.0 LTS, followed the step by step process shown in here. I run with Ubuntu 22. I didn't deal with any issues during the upgrade and ended up getting blank pages in all dashboards in frontend. Zabbix logs showed no errors. Browser console showed the errors in screenshot.

I tried to reinstall the zabbix-frontend-php but the issue remained and i ended up reverting the update.

Does anyone have any clue as to what might be the problem? Going from 6.0 to 7.0 is working fine, or might need to install 6.4 first then go to 7.0?


Thanks for any help

[comboloid]

For reference the problem was in nginx cache

2024/06/25 10:16:30 [crit] 939#939: *318 open() "/var/cache/nginx/fastcgi_temp/6/00/0000000006" failed (13: Permission denied) while reading upstream,

After deleting /var/cache/nginx/fastcgi_temp/ and restarting nginx, problem was solved.