Power button or touch screen unresponsive

Power button or touch screen unresponsive

I was resetting my keurig because it started that fun thing where it likes to preheat water continuously. When I plugged it in, the screen turns on and the little power button in the lower right side is there, BUT it will not turn on. I have taken it apart and checked everything making sure connections are good and I don’t see anything wrong. Please help!!