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: 26.04.2024 @ 20:53
Script: /board/board.php?boardid=13&sid=df150591b84ff3011be77500abded5c4
Referer: