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: 29.03.2024 @ 12:47
Script: /board/editpost.php?postid=9055&sid=ae42d21b459613a2aca43a0580fb7d9a
Referer: