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: 23.04.2024 @ 08:22
Script: /board/newthread.php?boardid=24&sid=30f580fa66c8da0d14c1be034ce26420
Referer: