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: 19.04.2024 @ 10:06
Script: /board/newthread.php?boardid=24&sid=f9813ccfed059648ba65d10c10b9dbb1
Referer: