Auction House

Someone please help. On February 6th 2018, l placed the 1988 #17 Dunlop Porsche 962 in the Auction House for a 24 hours. When I got home on February 7th 2018, I checked to see if my auction had sold. The auction house stated that my car had sold for a little over $580,000. So I went to retrieve the credits I got the message that the Forza servers are down please try again later. Then the game locked up. I powered the system down and restarted it but I lost my credits for my auction. My gamertag is Mitch Blalock. Any assistance would be greatly appreciated.