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 @ 15:51
Script: /board/board.php?boardid=24&sid=240e6252d73d0693da7fd382cccf62c6
Referer: