Failed to start Zabbix Server

[EVAndr]

After i stopped zabbix-server service, when i run "service zabbix-server start" it fails.

This is output of "journalctl -xe":
Nov 16 14:15:54 srv-nms1 systemd[1]: zabbix-server.service: Can't open PID file /run/zabbix/zabbix_server.pid (yet?) after start: Operation not permitted
Nov 16 14:15:54 srv-nms1 systemd[1]: zabbix-server.service: Failed with result 'protocol'.

I'm recently upgraded to Debian 11, and tried to upgrade zabbix as well from 4.4 to 5.0.

[EVAndr]

This error ocurred because of failed database upgrade, zabbix-server could't upgrade the database, therefor it can't start properly.