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: 18.04.2024 @ 15:11
Script: /board/board.php?boardid=1&sid=b706171fd0951c7e3eab0a417ca4634b
Referer: