will a crack in the scren stop the touch screen option

I stepped on my Proscan PLT8802G and cracked the screen. There are 2 cracks and they start in the same place , right above the jack where you plug the key board in. 1 crack goes to one side and the other one goes to the other side. I can turn it on and it charges but that is all. The key board does not work and the touch screen option does not work. When I touch the screen I can see the screen gets darker where I'm touching it but nothing gets activated. What can I do to fix this Please and Thank you very much