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 @ 01:57
Script: /wbb/thread.php?threadid=2092&sid=bdf0ece6f3544c03f3ec71cbb2b53757
Referer: http://delftseschaaksite.nl/wbb/thread.php?threadid=2092&sid=bdf0ece6f3544c03f3ec71cbb2b53757