Users unable to login to Zabbix - You must login to view this page

[zhazell]

After typing in credentials, you get this error. Apache logs show the following? Any guidance would be great. Zabbix 6.0.12

PHP log shows

[Fri Dec 09 01:06:16.750556 2022] [php7:notice] [pid 331396] [client 10.128.0.2:18630] PHP Notice: Undefined index: file in /usr/share/zabbix/include/classes/debug/CProfiler.php on line 381, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 01:06:16.750595 2022] [php7:notice] [pid 331396] [client 10.128.0.2:18630] PHP Notice: Undefined index: line in /usr/share/zabbix/include/classes/debug/CProfiler.php on line 381, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 01:06:16.750611 2022] [php7:warn] [pid 331396] [client 10.128.0.2:18630] PHP Warning: Cannot modify header information - headers already sent in /usr/share/zabbix/include/classes/helpers/CCookieHelper.php on line 59, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 01:06:16.750629 2022] [php7:warn] [pid 331396] [client 10.128.0.2:18630] PHP Warning: Unknown: Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions) in Unknown on line 0, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view%E2%80%8B"]https://zabbix.url/index.php?request...hboard.view​[/URL]

[Atsushi]

Check the permissions of the directory /var/lib/php/sessions. Is it readable and writable by the user running PHP?

[zhazell]

Check the permissions of the directory /var/lib/php/sessions. Is it readable and writable by the user running PHP?

I checked them but they don't seem out of whack. However no files are in this directory. I even changed to 777 temporarily to test and still get the same thing.

[zhazell]

I tried changing the session.save_path to /tmp in /etc/php/7.4/apache2/php.ini and still receive error.

[Fri Dec 09 15:27:35.835147 2022] [php7:notice] [pid 130974] [client 10.128.0.2:8458] PHP Notice: Undefined index: file in /usr/share/zabbix/include/classes/debug/CProfiler.php on line 381, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 15:27:35.835175 2022] [php7:notice] [pid 130974] [client 10.128.0.2:8458] PHP Notice: Undefined index: line in /usr/share/zabbix/include/classes/debug/CProfiler.php on line 381, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 15:27:35.835188 2022] [php7:warn] [pid 130974] [client 10.128.0.2:8458] PHP Warning: Cannot modify header information - headers already sent in /usr/share/zabbix/include/classes/helpers/CCookieHelper.php on line 59, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view"]https://zabbix.url/index.php?request...dashboard.view[/URL]
[Fri Dec 09 15:27:35.835205 2022] [php7:warn] [pid 130974] [client 10.128.0.2:8458] PHP Warning: Unknown: Failed to write session data using user defined save handler. (session.save_path: /tmp) in Unknown on line 0, referer: [URL="https://zabbix.url/index.php?request=zabbix.php%3Faction%3Ddashboard.view%E2%80%8B"]https://zabbix.url/index.php?request...hboard.view​[/URL]