I was trying to use my real money to buy a stock and moo can...

I was trying to use my real money to buy a stock and moo cancelled it claiming I couldn't. Then I bought it, with my real money through paper trade and I sold it at a gain. My real money disappeared. can anyone explain to me what might have happened? I have never set up a paper trade account because I didn't want it.

Also, another stock I have, at first would display a constant stream of bid and sell orders and now I don't have that anymore. I didn't adjust anything.