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 '/srv/.mysql/mysql.sock' (111)
mysql error number: 2002
mysql version: unknown
php version: 5.6.19
Date: 11.05.2024 @ 07:08
Script: /usercp.php?action=favorites&sid=803a4f7e4b5ac5ab67ac8c50bd67f8e9
Referer: