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: 23.04.2024 @ 11:11
Script: /board/board.php?boardid=13&sid=8a418768f9439e4447621bcfc7e9209c
Referer: