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 @ 05:37
Script: /wbb/usercp.php?action=buddy&add=262&sid=7a3c1cb8534cf9c864e2d269c25f3c99
Referer: http://delftseschaaksite.nl/wbb/usercp.php?action=buddy&add=262&sid=7a3c1cb8534cf9c864e2d269c25f3c99