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: 29.03.2024 @ 00:43
Script: /board/addreply.php?postid=10770&action=quote&sid=6f16f386ca7f05e1ed9e0eb5dddcf296
Referer: