GE Oven shuts down

We have a GE oven model JTP15WDA1WW. It doesn’t display any error codes, but just completely shuts off during baking. Sometimes it can be turned back on. Other times it shuts off completely and the screen goes blank. The buttons won’t work. Then after a while, the clock will start flashing again and it will come back on. I’m wondering what the problem can be. It is becoming more frequent.