I am assuming you checked out all the usual things that can cause a machine to freeze up, such as a tiny piece of thread stuck in the bobbin case....
I figured I would mention it just in case.
So sorry this happened. Do you have a friend who sews that maybe you could borrow their machine?
Your machine is only a year old is it out of warrantee already? Because you mentioned sewing repair place, I am assuming you did not get this machine from a dealer. Often a dealer can try and walk you through steps over the phone to try and get her up and running again.