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 @ 23:11
Script: /board/board.php?boardid=2&sid=46a0ed90f3f455b5c10a41b4cc8cab80
Referer: