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 @ 07:41
Script: /wbb/misc.php?action=viewip&postid=5543&sid=d2e9a56828f58657c681ba4f5ff0bd59
Referer: http://www.delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=5543&sid=d2e9a56828f58657c681ba4f5ff0bd59