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: 29.03.2024 @ 06:19
Script: /board/board.php?boardid=2&sid=8ba729a3a8b85a8ba7083b28bdc09881
Referer: