Recovery(Recycling) backs up lost

hello,

I lost my saves on Forza 5. The synchronisation problems and the steps have already been done at Microsoft XBOX ONE, I don’t have any solutions. I went on Forza to talk to you about this.
Before, I was at 60% and Level 302; but today, 0%

I would like you to tell me the solution because I have this save since Day One, and I didn’t make any errors.