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 @ 15:38
Script: /board/board.php?boardid=12&sid=a9a94e09201466a4fb3e31d9c198a8d8
Referer: