Dishwasher won't start

My dishwasher is almost two years old and has worked wonderfully. Until today. The dishwasher is getting power but it’s frozen and not doing anything. There are some lights lit up on the panel. The lights are dim but definitely lit up. They do not go off when I open the door. They are heavy duty, wash, dry, and clean. I unplugged it hoping it would reset but it did not. Please help!!