Floor tiles missing

I had some black floor tiles in my restaurant. I decided to change the decor and now I can't find the black floor tiles anymore. Anyone know what happened or how to get them back?

They may be in your storage if you replaced then with a different tile. Just access Design, select Tiles, and you should see a count of Black Tiles. Hope this helps!

I E?S designing my restaurant and when I was doing That a lag happend and I lost all of my money and I did't Get the Things I paid for

I was designing