hi emmie - so sorry about this problem! if you're still having the issue, I suggest clearing your browser's cache and reloading bitsy after that - I've seen that fix this issue before
important note:
before you do this, if you still have bitsy game data you want to keep, you should open your browser's JavaScript console from the bitsy page and type in the following code and then press enter:
localStorage["game_data"]
you should see a bunch of text appear in the console - this is the bitsy game data. if you copy it into a text editor (such as Notepad) and save the file with a ".bitsy" extension, you'll be able to reload your game into bitsy after resetting your browser's cache