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 @ 01:29
Script: /wbb/index.php?sid=8f8f10c02db8c8c0dae687d184d275ab
Referer: http://www.delftseschaaksite.nl/wbb/index.php?sid=8f8f10c02db8c8c0dae687d184d275ab