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 @ 09:53
Script: /board/board.php?boardid=13&sid=084edc7c612d3bdbe32aa26cf05831f0
Referer: