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: 19.04.2024 @ 08:31
Script: /board/board.php?boardid=1&sid=91c74471afa361151c0eda9b327c5737
Referer: