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 @ 13:26
Script: /board/board.php?boardid=13&sid=240e6252d73d0693da7fd382cccf62c6
Referer: