Hello, I just print yesterday funnel, and when I wake up, I see its print in the air.... I pause the print and see what's the problem. And I see the spool of the PLA disconnect from the printer, and its continume to printe in the night, but without PLA. So to remove the piece of PLA got stuck in the printer I was do UNDO meterial 1, but the PLA no outgoing from the printer. What I can do to remove the piece got stuck in the printer????? Thanks!!!