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: 28.03.2024 @ 19:38
Script: /board/board.php?boardid=9&sid=8073b25d24bd5f7d093d8e6dfbc76db4
Referer: