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 @ 12:18
Script: /board/board.php?boardid=1&sid=42d3f5fe3a43267eea4c740f89432cc6
Referer: