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: 11.07.2025 @ 03:22
Script: /usercp.php?action=buddy&add=933&sid=817adbd236641f162ad58be91c5f3fec
Referer: