We have received reports from some players that their Farms have been reverted to level 1. We are aware of this matter and this will be corrected soon. We'd like to assure you that your progress is not lost and will be restored.
You don't need to write to support about this, but you CAN click the "Fix it, Zynga!" button at the bottom of this article and fill out the form with the details of your experience.
We'll have everything back up and running in a moment!