I also have this problem. I haven't used Tryit Editor in a couple of months, but now I need to create a new page, and I can't load files from my Google Drive. This always worked perfectly, and now I'm dead in the water. I'm using the Chrome browser, and have tried to use Tryit on my PC and also my Chromebook - no joy either way. I've updated and restarted Chrome, checked apps permissions, etc. Nothing. What has happened, and is there any hope?