What happend?

When I make a new profile, the app create two, why?

Are you using a Form with an on submit action that adds a row?
If yes, then remove the on submit action - it isn’t required.

Side note: If this is your User Profiles table, then it looks like you don’t have it set up correctly. Firstly, it’s missing some columns, so it’s unlikely that you have User Profiles actually configured. Secondly, you should never have to add a row to your user profiles (unless you’re using a private app with email whitelisting) - rows in your user profiles table are automatically added the first time a user signs in.