Try resetting it.
1.Press the hold and home buttons at the same time. The hold button is the one on the top right corner of the iPad. The home button is the round one at the bottom center of the iPad's front
2.Continue to hold these buttons until one of two things happen: either the screen will flash and go dark, or a red slider will appear at the top of the screen
3.If the slider appears, slide it to the right to turn off the iPad
4.When the screen goes dark, the iPad is off
5.Restart by holding down the Hold button until the Apple icon appears. Let go of the buttons and the reset will be complete.