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: 21.01.2025 @ 22:30
Script: /login.php?sid=1061b164f688e8e39008f58f8f77f724
Referer: