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 @ 01:38
Script: /wbb/search.php?action=user&userid=97&sid=3168c7f3fcdebd86ef85b17987c88747
Referer: http://delftseschaaksite.nl/wbb/search.php?action=user&userid=97&sid=3168c7f3fcdebd86ef85b17987c88747