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: 20.04.2024 @ 09:51
Script: /board/board.php?boardid=1&sid=9f3e1d24ece4b23792c4ae326e4380b9
Referer: