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 @ 02:49
Script: /index.php?sid=8a5ca2248532798a6e2f92ac17f8c3c0
Referer: