[Domain Mapping] Domain mapping error

Hi

I have the same error as this link
https://premium.wpmudev.org/forums/topic/domain-name-is-unavailable-to-access-1

But I don't have my server in a VPS and I have been putting the domain on Alias Domain on Cpanel and have been working until this domain.

The domain is amadorvarum.com that redirect to amador.thestrongo.com

The Health Status show invalid.

I really don't understand why doesnt work this domain.