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: 27.04.2024 @ 02:26
Script: /board/board.php?boardid=3&sid=b85c339cc7a173d4af22b8effc7dcfca
Referer: