You have a shorting keypad. This can be very dangerous and result in a fire.
So until it is repaired, please leave it unplugged or leave the door open when it;s not in use, and please do not leave it running unattended.
If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures
showing you what's typically involved.
You can usually find Magic Chef parts here
If not, please reply back with your model number so we can help you.
If you would like to have us do this for you, we do that for $39.95 plus part costs.
Feel free to contact me directly
(and please remind me of your model number) for more information & help.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.