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 @ 02:23
Script: /wbb/misc.php?action=viewip&postid=25194&sid=a9aa00cc345d82f9a1ec2548fd1bf327
Referer: http://delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=25194&sid=a9aa00cc345d82f9a1ec2548fd1bf327