Hey! Sorry for responding late, but I didn't have time earlier...
After you get on top for the first time, it should make the screen white (as you said) and create some lines (another effect) that leads you down.
After you get through that phase, you have to go back up again, and then the game ends!
As I understand, you were only able to get passed the first phase, and it didn't load the rest. I've had some difficulties when testing the game on other devices, but if you can switch from full-screen to window mode, it may fix some of those issues.
Other than that, I can't really do anything else. If the problem keeps appearing, I could try and fix it if you were to send a gif or some kind of video file to me, so I can try and understand where the problem is!