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: 27.04.2024 @ 00:51
Script: /board/newthread.php?boardid=9&sid=dd011866d64d04774eaea043bdf9e239
Referer: