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 @ 01:45
Script: /board/board.php?boardid=12&sid=f0f52bba78cc34f78883a4fe45d01054
Referer: