Hello, Deborah -
I hope I am correct in thinking that you do not have the owner's manual for your oven. If you do have the manual, failure codes are probably listed in the manual, with an explanation of what they mean.
According to information on the list of GE Wall Oven Error Codes provided by Sears PartsDirect:
Stuck or defective button on the key panel
The check / repair is:
Push the Clear/OFF pad. Shut off power to the oven, disconnect the flat ribbon connector from the electronic oven control board and then restore electrical power. If the code reappears after about 30 seconds, replace the electronic oven control board. If the code doesn't reappear, replace the key panel.