OK, so whenever I try to use Rivals, Leaderboards, Auction House or the Store Front, I get a message that says “Feature Unavailable. This feature has been temporarily disabled. Please see ForzaMotorsport.net for more info.”.
Also I can’t give or receive gifts or post my images to my online gallery?! I’ve not had any messages from Turn 10 but I am aware that there have been server issues due to the Lizard hack.
Your question is best to be answered by a moderator, but until then - the conditions and message you’re getting sounds similar to the one when a player is banned. Irrespective, make sure your Xbox live account is intact and then your best bet is to contact Microsoft.