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: 21.05.2024 @ 03:36
Script: /wbb/search.php?searchid=294224&sid=e4173612795391aa13e8ed8d2c4f4509&page=3
Referer: http://delftseschaaksite.nl/wbb/search.php?searchid=294224&sid=e4173612795391aa13e8ed8d2c4f4509&page=3