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 @ 03:23
Script: /board/newthread.php?boardid=6&sid=b2e0e6c58d781611bc7d1abcdb4bbada
Referer: