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 @ 14:05
Script: /board/board.php?boardid=28&sid=9ba663042f7854e4203794bf256ad3ec
Referer: