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 @ 05:48
Script: /board/board.php?boardid=13&sid=ee79883c998f7c559fa2530400c346af
Referer: