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: 29.04.2025 @ 19:23
Script: /register.php?sid=090742406bcf216901f1ade168db8aca
Referer: