I can not acced to the Android app with my credentials. Answered

Hi. When I try to acceed to the Android app with my credentials I can not. I registered on the web with Google but I have tried to create an account with that credentials and is impossible to create one.

App Instructables, 2.0.4.
Lollipop 5.0.1

I was in the welcome page on the app.

Thanks.