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: 18.04.2024 @ 22:55
Script: /board/board.php?boardid=28&sid=59526687ee41f70b8db54ba1b94f18ee
Referer: