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 @ 02:27
Script: /wbb/usercp.php?action=buddy&add=97&sid=446b845ddf44f20ccd935b21a3b580a5
Referer: http://www.delftseschaaksite.nl/wbb/usercp.php?action=buddy&add=97&sid=446b845ddf44f20ccd935b21a3b580a5