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 @ 20:02
Script: /board/board.php?boardid=1&sid=cd223849ba066e5e24dd1fd86f20cff5
Referer: