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: 03.07.2025 @ 08:06
Script: /usercp.php?action=buddy&add=102&sid=12e7c38caa2292784195ac847b9517fc
Referer: