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' (111)
mysql error number: 2002
Date: 21.05.2024 @ 00:15
Script: /wbb/editpost.php?postid=5924&sid=ab1d952fd6a9312bdd90b4824afd8166
Referer: http://delftseschaaksite.nl/wbb/editpost.php?postid=5924&sid=ab1d952fd6a9312bdd90b4824afd8166