From that screenshot, it looks like you are logged in as the appnroll account, which is a team. Teams cannot create new teams, which is why you see this page. In order to create a team, you'll need to log in as one of the administrators of the App'n'roll team. If you have any questions about this or need help, please email email@example.com.
We will put out a change shortly to make this clear for other users.