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 @ 05:58
Script: /wbb/misc.php?action=viewip&postid=31101&sid=bf1be8fdae4ee40f543e1f27dcea3b2c
Referer: http://delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=31101&sid=bf1be8fdae4ee40f543e1f27dcea3b2c