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: 08.07.2025 @ 11:11
Script: /search.php?action=user&userid=102&sid=11c8189abd7fb859fd8c0ff0d1273c58
Referer: