H'm, I'll have a look. In the meantime, I reckon if you clear the cache on your browser you'll be fine. I think it might be an issue where if you hit the stats button more than once (which shouldn't be possible but I did put this up in a bit of a rush) then the button (which just operates on a literal "go back" basis, ie the last page you were on whether or not it's the same page becomes the previous page) will just end up cutting you off from the game altogether.
Like I said, try clearing your cache (which is where Twine saves all its information). I'm working on other stuff at the moment but when I get time I'll fix up the back button.
