SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2)
mysql error number: 2002
mysql version: unknown
php version: 5.6.40
Date: 30.04.2024 @ 18:12
Script: /misc.php?action=faq&sid=29f377809e8023f0a27a2adfe37ae5dc
Referer: http://www.biker-community.com/misc.php?action=faq&sid=29f377809e8023f0a27a2adfe37ae5dc