SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
mysql error number: 2002
Date: 11.07.2025 @ 02:51
Script: /usercp.php?action=addsubscription&boardid=93&sid=8e37da36e23b3c65764b3037d7474e4e
Referer: