Post rejected: Incorrect design (People Playground)

Every time I try to post my next work, I encounter the message "Post rejected: Incorrect formatting", despite the fact that everything is copied from the previous post, which is also painfully posted. Even banyat for a while. Then the administrator probably changes to an adequate one and the work is already exhibited and everything is fine and magically becomes the correct design. Please indicate (open the secret) that is not so incorrect. I studied the rules, all the points.