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 @ 08:29
Script: /wbb/editpost.php?postid=31731&sid=d5e06ae2b79768ba2f3702cdb4cb6bdf
Referer: http://delftseschaaksite.nl/wbb/editpost.php?postid=31731&sid=d5e06ae2b79768ba2f3702cdb4cb6bdf