Hi Daniel,
What exactly is your problem? I’m not sure if I understood you correctly because you mentioned that you tried to upload “a file” to different websites. What file do you mean?
If your game does not run locally in your browser, don’t upload it anywhere because it is unlikely that it’ll magically work on a website. If you are missing scenes, check File > Build Settings in Unity. The scene list is sometimes buggy. Remove all scenes from the list and readd them.
If the problem persists, please compar your code to the Lecture Project Changes which can be found in the Resources of this lecture. Maybe there is an endless loop in your code.
Did this help?
See also:
- GameDev.tv Community : WebGL Debugging