Missing money!!!

I went one day without logging on the horizon 4 and when I come back I had went from $20,100,000ish (20 million+) all the way down to 13 million+. I lost out on 7 million I had been saving. Money was made legit through auction house sells and racing. I never did and glitch and I am getting close to my first prestige. I have made $6million of the money back from the auction house but it’s still lost money that could’ve been spent. Please help I’d be super greatful.

-L am four