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 @ 04:13
Script: /wbb/thread.php?threadid=4322&sid=a19877d2203f1ebf7bd8f00abf5ae33c
Referer: http://www.delftseschaaksite.nl/wbb/thread.php?threadid=4322&sid=a19877d2203f1ebf7bd8f00abf5ae33c