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 @ 09:00
Script: /board/newthread.php?boardid=9&sid=284335b0b74cfdb6bb3d495a07a345e0
Referer: