Camm-1 Pro Cutting problems

I have a Camm-1 Pro Cutting machine.

The problem I'm having is the cutting head itself doesn't move when I send something over for it to cut from coral draw. I've also tried doing a test from the machine itself and it's as tho it's not telling the machine to put the head of where the needle is on the vinyl. I've had no problems in the past just I've turnt it on today as it will "go to cut" but the head doesn't actually touch the paper. Can anyone help please!!