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 @ 00:18
Script: /wbb/thread.php?threadid=2822&sid=c4953ebedc7c9d3ed2f8bc4b79b1c6a0
Referer: http://delftseschaaksite.nl/wbb/thread.php?threadid=2822&sid=c4953ebedc7c9d3ed2f8bc4b79b1c6a0