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: 19.07.2025 @ 00:51
Script: /board.php?boardid=69&sid=4a2d2bd68eae20adf0c4061d4fd58122
Referer: