This glitch has already been posted multiple times (don't have th link on me), and this should be locked. Basically, just wait it out, or restart Ag a couple of times. It'll go away.
Please look at other suggestions before posting a new one, this has been talked about many times, you can read more about it Here it has some info about it, this has been brought up many times, and also check Here which is probably a better place!
