FARMVILLE FACEBOOK PROBLEM!!?

When I go on Farmville on Facebook, I do all my farming: plowing, planting, etc. Then, I log off. The next day I come on to Farmville, all the process that I did the previous day is gone. Why is that? Also, I redid my farming. Right when I was finished, a box popped up. It said: Saving your progress...please do not close your browser. Something like that. I wait for it to close, but it never does. It just stays there. I refreshed the page, and when I go back, all my progress goes away again. Can somebody help me?