Hey there! Thank you so much for wanting to try our game. We are aware there's a problem with Godot's VideoStreamPlayer that causes random crashes when switching scenes, and that may be the source of the problem.
Try clicking start a few times, and if it doesn't do the trick, redownloading the game should fix it.
It's an engine bug that sadly, is yet to be fixed (https://github.com/godotengine/godot/issues/78788); in the meantime we can do nothing but try a workaround and wait.
We hope you can play the game soon! :) When testing the final game, none of the people who played had this issue, but we'll look into it regardless.