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: 10.05.2024 @ 08:57
Script: /usercp.php?action=buddy_list&sid=f84eb79514e4b6df8d50caa434ae1120
Referer: