I'm starting my device as supervised and I want to assign a wallpaper in the Modify option in Apple Configurator 2 but I'm getting an error as in the image. It says that my device is not supervised but as you can see in the screenshot it is supervised.
Why I am getting this error and how can I solve that?
NOTE: The error is
Configurator could not perform the requested action because “iPad” is not supervised by an existing organization.
Import an organization with the identity for the device or click ‘Prepare’ to erase and supervise the device. All content and settings will be erased. This cannot be undone.