Zabbix Server not running: database is down

[Hardy]

Hi

I am completely new to Zabbix and Ubuntu but when I open Zabbix I get the message 'Zabbix server is not running: the information displayed may not be current'. I have looked into the log files and I get the following message:
881:20220601:085512.051 database is down: reconnecting in 10 seconds

Can anyone help me to resolve this issue. Thank you in advance

[cyber]

Try to find out, why your DB is down.... That's all I can say based on given information...