Jenn air F1-7 and F1-8 messages

My oven won’t work, nor will any of the buttons on the control. My top burners are just fine, though. When I turn it off and then back on at the breaker, I sometimes get an F1-8 message, but most of the time, I get an F1-7. Though the clock is running, I can’t get it to change the time. I’m very confused as to which part is needed to repair the oven. Please help me so that I can use this again. It’s a JES9800AAW. Thanks.