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 @ 02:41
Script: /wbb/board.php?boardid=168&sid=d99a5b4cd2d710a4653e4f96f9cc278d
Referer: