Ok when you start it going do you hear the motor running?
Are the lights lit up?
Ok sounds like the belt will have snapped.
To get at it you need to take the top off and check to see if the belt is still round the drum. If so lift it up and see if it comes off.
If so then the belt will need to be replaced. To do this you need to remove the little cover on the back in the bottom right corner.
Then take off the screws on the back panel and pull the back backwards a bit and then you can slid the new belt round the drum at the front.
Then refit the back panel.
Now the fun part you need to strech the belt around the motor pully.
I use a long screwdriver and wedge it in the motor bracket and slid the belt down it onto the pully of the motor.