after some troubleshooting inside the tables of a mysql database the system still not runs stable. The next day I wanted to login via Plesk it stated:
'ERROR: PleskFatalException
Unable to connect to database: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
0: /usr/local/psa/admin/plib/common_func.php3:156
psaerror(string 'Unable to connect to database: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)')
1: /usr/local/psa/admin/auto_prepend/auth.php3:90'
Is there any possibility to fix this via command lines? Thanks a lot for any help.