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: 06.07.2025 @ 00:16
Script: /index.php?sid=ad7b31548da4be1c4f8e0e88b8f6e299
Referer: