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: 28.03.2024 @ 13:29
Script: /board/board.php?boardid=9&sid=c8d0c42be05df20842c6b247a7748309
Referer: