Issue No access to control panel after removing mail components (404)

[MikeSkril]

Hi,

I removed the mailserver and webmail components within the control panel and this was finished at 100% (there was a mention of errors but I cannot recall).
After going back to the control panel, I got a 404 error. Now I cannot reach the control panel anymore.

I tried to repair thru the terminal but the plesk commands are not working. I have not much terminal experience and would appreciate some help.

Plesk 18.0 on
Ubuntu 18.04.5 LTS

root@foobar:~# plesk
Usage: plesk [command]

Commands:
  bin - Run the specified Plesk command-line utility (e.g., domain, client)
  checkupgrade - Download the preupgrade checker for the latest, or specific Plesk version
  conf - Open the specified Plesk configuration file in the editor
  daily - Run daily maintenance script
  db - Database related commands. Open MySQL console by default.
  ext - Call a command-line interface of the specified Plesk extension
  help - Show help and exit
  installer - Plesk Installer shortcuts and command completion
  listupgrade - List versions current instance can upgrade to
  log - Follow Plesk logs
  login - Generate login link for specified user
  php - Run a PHP script using the Plesk PHP interpreter
  repair - Check and repair Plesk
  sbin - Run the specified Plesk internal utility
  version - Show product version information
root@foobar~# plesk version
open /usr/local/psa/version: no such file or directory

root@foobar:~# plesk repair all -y
Unknown Plesk command-line utility: "repair"

I followed these steps so far but that did not change anything:

Unable to access Plesk: Unknown database 'psa'

Applicable to: Plesk for Linux Plesk for Windows Symptoms Plesk is not accessible with the following error messages in a web-browser: PLESK_INFO: Unknown database 'psa' Cause The Plesk system ...

support.plesk.com

Here some stuff from my syslog:

Jun  7 19:05:03 foobar systemd[1]: Failed to start Startup script for Panel sw-engine.
Jun  7 19:05:03 foobar systemd[1]: plesk-task-manager.service: Service hold-off time over, scheduling restart.
Jun  7 19:05:03 foobar systemd[1]: plesk-task-manager.service: Scheduled restart job, restart counter is at 12283.
Jun  7 19:05:03 foobar systemd[1]: Stopped Plesk Task Manager Service.
Jun  7 19:05:03 foobar systemd[1]: Starting Plesk Task Manager Service...
Jun  7 19:05:03 foobar systemd[1]: plesk-task-manager.service: Failed to parse PID from file /run/plesk-task-manager/task-manager.pid: Invalid argument

 

[MedZec]

100% identical issue.

Sites are still being served but cannot login to Plesk console.

 

[MedZec]

Fortunately the link you had @MikeSkril worked like a charm and in seconds:

I followed these steps so far but that did not change anything:

Unable to access Plesk: Unknown database 'psa'​