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: 30.06.2025 @ 22:34
Script: /index.php?sid=03b5fafb8eaf6fe3ccdf464adb646914
Referer: