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: 28.03.2025 @ 04:10
Script: /board.php?boardid=37&sid=a83088ef3181ac16b9f5f5de37eefe0e
Referer: