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 @ 03:06
Script: /wbb/misc.php?action=viewip&postid=18697&sid=6f527861f4f6f87c2a3c6fc2e67ebd6f
Referer: http://www.delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=18697&sid=6f527861f4f6f87c2a3c6fc2e67ebd6f