So... yesterday I recently updated my 3DS and got Miiverse. So when I went on Miiverse.. I just made a ID and started talking to communities.. etc.
And I was gonna post something on my feed.. and when I posted it.. a message popped up saying "You are currently restricted from interacting with Miiverse."
I have done nothing wrong.. 
I dont get how this happened?? How do I get rid of this.. I want to get on Miiverse again!! 