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: 26.04.2024 @ 15:42
Script: /board/board.php?boardid=12&sid=bf9bbe54aea80a8e269659b6d0c5e1f7
Referer: