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 @ 00:38
Script: /wbb/misc.php?action=viewip&postid=31643&sid=3cad90c19950ac5c1cac2d4bd803cf6c
Referer: http://www.delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=31643&sid=3cad90c19950ac5c1cac2d4bd803cf6c