NFS 2015 Money Bug

Ok so I love playing nfs 2015, buying upgrading and selling cars to see what theyre all like but recently i was racing for the whole day doing hard missions to earn money and after about 4 hrs i went to the garage and sold my Mercedes benz AMG GT for 100000+ without realizing i got no money for any of the races i did as well as for selling the car. I'm really upset about this to the point of quitting the game as its still happening. my money wont go above 5000 dollars and this needs to be fixed pronto Ghost Studios