Forza horizon

I was recently banned from the storefront for one week not sure why. I posted some of my own designs and some designs were gifted to me. can anyone tell me if it is ok to sell designs that were gifted to you? I can’t think of any other reason For the ban. they put all the cars I posted under review and the next day I got the message of the one week ban so even my own cars were under review so I am confused.