Issue Failed to start Startup script for Panel sw-engine

[MikeSkril]

I would appreciate if anybody could help with that. I can'figure out whats wrong. The only thing I did was removing the webmail components within the control panel.
Now I can't start plesk...

Here is the journalctl -xe

Jun 14 22:38:38 foo.net systemd[1]: Starting Startup script for Panel sw-engine...
-- Subject: Unit sw-engine.service has begun start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit sw-engine.service has begun starting up.
Jun 14 22:38:38 foo.net grafana-server[1102]: t=2021-06-14T22:38:38+0000 lvl=eror msg="Alert Rule Result Error" logger=alerting.evalContext ruleId=13 name="Plesk
Jun 14 22:38:38 foo.net sw-engine-fpm[7160]: [14-Jun-2021 22:38:38] WARNING: Nothing matches the include pattern '/etc/sw-engine/pool.d/*.conf' from /etc/sw-engin
Jun 14 22:38:38 foo.net sw-engine-fpm[7160]: [14-Jun-2021 22:38:38] ERROR: No pool defined. at least one pool section must be specified in config file
Jun 14 22:38:38 foo.net sw-engine-fpm[7160]: [14-Jun-2021 22:38:38] ERROR: failed to post process the configuration
Jun 14 22:38:38 foo.net sw-engine-fpm[7160]: [14-Jun-2021 22:38:38] ERROR: FPM initialization failed
Jun 14 22:38:38 foo.net systemd[1]: sw-engine.service: Main process exited, code=exited, status=78/n/a
Jun 14 22:38:38 foo.net systemd[1]: sw-engine.service: Failed with result 'exit-code'.
Jun 14 22:38:38 foo.net systemd[1]: Failed to start Startup script for Panel sw-engine.
-- Subject: Unit sw-engine.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit sw-engine.service has failed.