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: 18.04.2024 @ 23:48
Script: /board/board.php?boardid=24&sid=725c9889faaa4e4072e06edd5f2625ec
Referer: