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 @ 02:42
Script: /board/profile.php?userid=54&sid=04ab4d3898a305f9c6a39d52a18a4bc3
Referer: