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: 27.04.2024 @ 02:36
Script: /board/addreply.php?postid=9055&action=quote&sid=ae42d21b459613a2aca43a0580fb7d9a
Referer: