where can I add a screenshot to show you?

Information about reporting bugs can be found on the Support page.

Sorry for the inconvenience Cosmin you can always check out the Treehouse status page in the future to see if we're aware of a problem. If it looks like we're not aware you can always report an issue to our support team!

In the meantime be sure to check your internet connection, the browser cookies and cache within the history settings as well as trying a different brower as well