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: 20.04.2024 @ 16:02
Script: /board/board.php?boardid=13&sid=f4204ada3cb4cfd201bc050cff4f5456
Referer: