Hi Leslie - my apologies for making you post twice! I didn't realize you were using our new forum already. :) For teachers who are reading here...
It looks like the page isn’t finishing loading. Can you try loading it in a different browser, or on a different computer? If I had to put my money on something, it would be that a school firewall is blocking the loading of an important file. If you see the same issue in all browsers, that will confirm things.