I was able to purchase this machine from a friend who bought it new. She only put 19 hours on this machine. I have had it for about a month. I have done a lot of sewing on it and just love it. I have not had any problems until now. I have to keep restarting it for it to work. It will stop sewing and the touch screen will stop working. I have checked to make sure it is plugged in all the way and the room is not too cold. What could be wrong with my machine????