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: 20.04.2024 @ 11:44
Script: /board/newthread.php?boardid=4&sid=e960efa21b88cc03bf20fadf7fde0c20
Referer: