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: 25.04.2024 @ 02:06
Script: /board/board.php?boardid=9&sid=2be20a9d20cbb8f94a036843a2505002
Referer: