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: 24.04.2024 @ 11:45
Script: /board/addreply.php?postid=2889&action=quote&sid=af85b9fbb086df27e97bceb4dfebfe69
Referer: