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: 19.07.2025 @ 01:26
Script: /usercp.php?action=buddy&add=102&sid=b73dd9398ad1f8fa5869c3e406ab411b
Referer: