zabbix-agent do not starting

[zoran]

Hello everybody
Can somebody help me with Zabbix Server. I installed on my Ubuntu machine a couple day ago, but from yesterday Zabbix does not working. I can login but have message zabbix-server not running. When I checked all services with command service --status-all, I saw that service zabbix-server has minus, not plus.

[cyber]

You know that screenshot can be done only for active window also (ctrl+alt+printScr)? and just part of it also (Win+shift+S)?
But all that logfile says, is that you don't have proper config there to connect to DB. It tries to connect without any password, so I assume your config file was maybe overwritten by update? Fix the config and it will work again.

[zoran]

Which log file I need to check and to edit.

[cyber]

Logfile that you have on that screenshot... but config file is probably /etc/zabbix/zabbix_server.conf