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 @ 02:43
Script: /wbb/index.php?sid=243d1c45d05e28bad8f533a3a7da782c
Referer: http://delftseschaaksite.nl/wbb/index.php?sid=243d1c45d05e28bad8f533a3a7da782c