struggling

Hello I was having the same problem as the original poster with the Juki Lu-563. I posted on a juki group and was told it sounded like the clutch was out, to push the button and to turn the wheel away from me. So I tried again, I don't know much about my machine maybe it was already locked in just not working? Now my machine is completely locked up. I can not turn it at all and when I try to use the foot petal nothing happens.