My MAC does not recognize My Clound

Hello people.
I recently changed my mac and it does not recognize My Clound (which is connected on the same network). I need transfer the backup of my old mac that is in My Clound, but like MAC does not recognize, it is not possible to restore the backup.
Can someone help me?
The system I use is Sierra 10.12.6 macOS

Hi dabrenha,

You may take help from the link below: