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: 04.07.2025 @ 08:27
Script: /board.php?boardid=76&sid=48f2dc23eb44abc8c73ac92938eb1155
Referer: