Domain don't work

I opened a topic yesterday to use the domain “pracaolimpica.com.br” worked correctly, but now night came the same message that the domain is blacklisted, what’s the problem? With the domain? The site is of a restaurant in Brazil, called “Casa de Lanches Praça Olimpica”, where they are marketed gourmet burger.
I parked it on the following site "https://app-1502457794.000webhostapp.com/"
The site refers to this establishment https://www.facebook.com/casadelanchespracaolimpica

Hi @brunoslash!

Domain pracaolimpica.com.br is still linked to app-1502457794.000webhostapp.com. If you want to make use of it, please unlink/delete it completely and then point it using CNAME records method: