I just bought a scratch card and then went to "scratch" it. I guess it some how double clicked on the button and therefore brought me to a screen saying "This is not your scratch card!". I tried the backspace key and it brought me back to the front page still with my Pie Scratchcard in the drop down menu. I tried again to submit the card, but again was taken to the error page. Now I no longer have a scratch card in my inventory (and it doesn't show up in the drop down menu) and the timer says I still have almost an hour before I can buy another one. Is there a way for me to find my scratch card?
Buy a new one, when you go to scratch it it'll link you to your un-finished card.

refresh the scratchcard page.. there might be a link saying you're already scratching. If that fails, then wait until you can buy another one, and when you attempt to scratch it, it'll tell you you're already scratching, and provide a link for you to finish it.