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 @ 05:27
Script: /wbb/editpost.php?postid=15379&sid=ac3eb4ee28f32d11f0e3011a14b91d1c
Referer: http://www.delftseschaaksite.nl/wbb/editpost.php?postid=15379&sid=ac3eb4ee28f32d11f0e3011a14b91d1c