Janome MemoryCraft 6500P auto cutter problem

Question

When I turn on my MC6500P I get a msg telling me to press the auto cutter button. I press it and it tells me to press it again. And again. And again. The hook race is clean, there's no thread in the cutter, there isn't even any thread in the machine!!! I can't thread the bobbin thread thru or sew anything. Is there a way to fix this myself (like a reset button) or do I need to take it to a service center?