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 @ 07:44
Script: /login.php?sid=aa7f752a7ad9d0fd1722f8a8a0fe0a92
Referer: