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 @ 19:31
Script: /board/board.php?boardid=24&sid=dbd8e565651607ee68c0ed9d7af83f27
Referer: