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/thread.php?goto=nextnewest&threadid=2955&sid=9acdb0be0a857d0d9feeea53e7616bf0
Referer: http://delftseschaaksite.nl/wbb/thread.php?goto=nextnewest&threadid=2955&sid=9acdb0be0a857d0d9feeea53e7616bf0