I've never thought of that! Thank you for the advice! :) The issue should be fully resolved!
Edit: I found ONE more spot that will make the game crash! I'm about to upload THAT fix, too. D: If you already downloaded and started playing, you can save (hit ESC to bring up the menu) your current progress and move the save file into the folder with the updated demo.
Gah, sorry about the inconvenience! :(