For future reference, dumping full scenes, or in this case your whole project isn’t very helpful. First we can’t build your project because we don’t have any of your art or audio assets. Secondly that much text, most people are going to simply skim passed. You’re lucky you got a couple of people to take the time to read through all the code.
It’s always best if you can narrow down the problem, but in this case, seeing how your app is organized was important to offer a suggestion. In the future put your entire project in a .zip file, upload it to DropBox, Google Drive or similar and provide a link so we can download the file and see the whole project and not make forum posts that take forever to read.
Thanks for understanding!
Rob