SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 18.04.2024 @ 20:42
Script: /board/addreply.php?postid=51&action=quote&sid=926cbfb7636c7b8bac500b5c25d65244
Referer: