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 @ 18:32
Script: /board/board.php?boardid=12&sid=c78d75747b0e182f99752213f1915caa
Referer: