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: 09.07.2025 @ 08:56
Script: /index.php?sid=55e7f989d47949fa9625ad71b6eaf865
Referer: