Money gone missing

Ok so I loged on to my xbox this morning and I go in forza and I noticed that all my money was gone I had 12 mil and a hundred dollars worth of tokens and that was all gone and I got the collectors edition game and that dlc was gone to so can somebody tell me what to do

Your not alone as this happened to me 2 weeks and I reset to level 1,so I had to start all over again