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 @ 12:08
Script: /board/board.php?boardid=13&sid=b54cbdc0ee8f3b6878157147ed625f40
Referer: