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 '/var/run/mysqld/mysqld.sock' (2)
mysql error number: 2002
Date: 15.07.2025 @ 23:10
Script: /usercp.php?action=buddy&add=1388&sid=a8360510c5f7cb744f440bd1fb272f41
Referer: