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 @ 08:04
Script: /wbb/thread.php?threadid=1729&sid=702f71e26e5aef2ac44b0ea0c4c2faf5
Referer: http://delftseschaaksite.nl/wbb/thread.php?threadid=1729&sid=702f71e26e5aef2ac44b0ea0c4c2faf5