Hello my name is Rick, I will assist you today
You are going to need to remove articles from the freeazer area and then using a blow dryer, defrost the ice you can see right now. Then remove the outer panel on the back and there will be more is located there. Please defrost that also, once ice is removed please inspect for loose of wires not connected.
Also if you give me the entire model number I will be able to assist in getting you the correct parts to repair this problem