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 @ 07:41
Script: /wbb/editpost.php?postid=17231&sid=8c3a547e7f5b1ad701e6d0bf5ca3ab72
Referer: http://www.delftseschaaksite.nl/wbb/editpost.php?postid=17231&sid=8c3a547e7f5b1ad701e6d0bf5ca3ab72