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 @ 00:58
Script: /wbb/thread.php?threadid=6344&sid=1e7a4a20dc11792088ab08fe1ec3b115
Referer: http://delftseschaaksite.nl/wbb/thread.php?threadid=6344&sid=1e7a4a20dc11792088ab08fe1ec3b115