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: 19.04.2024 @ 20:15
Script: /board/board.php?boardid=10&sid=df150591b84ff3011be77500abded5c4
Referer: