If you see the prompt above in your terminal, then your Learn IDE is authenticated and the light just didn't flip. The first step is make sure you're using the Chrome browser. If you're not, log into Learn with Chrome. If you are using Chrome, try refreshing the webpage.
If neither of these things helped, try logging out of the Learn IDE and logging back in using your email and password (not your github account) that you created when downloading the Learn IDE.
If that doesn't work, use Ask a Question to receive assistance from a Technical Coach.