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 @ 06:27
Script: /wbb/editpost.php?postid=16384&sid=9c1c4e34f8b2dc7fb5bf3adb38d42149
Referer: http://delftseschaaksite.nl/wbb/editpost.php?postid=16384&sid=9c1c4e34f8b2dc7fb5bf3adb38d42149