IcingaDB installation icinga service does not come up after enabling icingadb feature


I tried to install the icingadb on my server.
OS: Debian 11.
The icingadb is running (so both redis and mysql). My icinga2 service is also running.
Problem when i do icinga2 feature enable icingadb and then try to start my icinga2 service, my icinga service does not start anymore. I took a look in my log file but there seems to be an error with a cert in /var/lib/icinga2/certs//ca.crt. This directory does not exist.

Would be cool if anyone could help me who might have faced the same problems and already solved them.