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: 19.04.2024 @ 17:08
Script: /board/board.php?boardid=10&sid=90a54c343077ed40b9c99f5eb9c7e677
Referer: