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 @ 17:21
Script: /board/board.php?boardid=1&sid=a87dd9fe101b6be54affdb67555c3f9f
Referer: