Authentication issue with Firebase

I'm using Firebase for authentication and database of my app, everything was perfectly fine until (I'll talk exactly what happened because I do not know if it has relationship or not) I start to mess with the map that has in the app, trying to implement a PlaceAutocompleteAdapter, then I added such api and restricted access. When I saw Firebase had disconnected from the app, then I connected and did what he asked, but when I went to test the authentication gave this error

BasicNetwork.performRequest: Unexpected response code 403 for

I can write to DB, only authentication that fails

 FirebaseAuth auth = FirebaseAuth.getInstance;

 //Ao clicar no botão de registrar
 auth.createUserWithEmailAndPassword(email, password){

 }