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 @ 08:14
Script: /board/editpost.php?postid=1003&sid=3e75d41b9405381c602a069f2808924d
Referer: