No access to notebook. Earlier versions do not help

Hi. I downloaded Anaconda, am studying on Coursera, and was only able to complete a couple of examples from the lab. After that, I registered with Anaconda Cloud at the suggestion in the pop-up window and access to the notebook disappeared. How can I fix it?
Could it be that I can’t access my notebook because I’ve signed up for an Anaconda Cloud account, but I’m a free user?