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 @ 02:22
Script: /wbb/misc.php?action=viewip&postid=21005&sid=6aa2ecdc0fc9fbc65d5aec5b8420d01d
Referer: http://delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=21005&sid=6aa2ecdc0fc9fbc65d5aec5b8420d01d