I don't know if you will be able to continue the game, though. When I did the update, I lost the save files on my end. It was kinda screwy when I did it, so I can only hope that a) others don't lose their files and b) that will never attempt to do an update that dumb again and just stick with updating the filename as-is (While I have some years of making HTML5 games, I am a total newb to posting them anywhere outside my own domain).