I don't know if this is happening to other people too, but whenever I quit the game (After saving as well of course) and go back into the game, I find my data completely gone. This has happened to me at least 4 times, does anyone know why? If so please respond to this so I can try and stop the data getting deleted, or at least find the cause of it. ~JoltCario

It's most likely an issue with your computer. The saved file is saved to your computer, so make sure you allow flash cookies on your computer/browser. What browser are you using? It's working fine for me on Chrome.