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: 18.05.2024 @ 03:27
Script: /login.php?sid=88486deae3b0e0f95bb3f6e1d145f4d0
Referer: