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: 25.04.2024 @ 16:02
Script: /board/board.php?boardid=11&sid=1f7af17f28cc1d8a1259ecfaa4ba958a
Referer: