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: 27.07.2024 @ 01:47
Script: /wbb/usercp.php?action=buddy&add=44&sid=7a1f419c330f7b49a86a6cb07cac39c2
Referer: http://delftseschaaksite.nl/wbb/usercp.php?action=buddy&add=44&sid=7a1f419c330f7b49a86a6cb07cac39c2