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 @ 01:48
Script: /wbb/misc.php?action=viewip&postid=9021&sid=9dbec36a0f788f57c2c9802b14d8f1e3
Referer: http://delftseschaaksite.nl/wbb/misc.php?action=viewip&postid=9021&sid=9dbec36a0f788f57c2c9802b14d8f1e3