Janome Memory Craft 6500

Question

A Warning Sign came on....[The power is turned on without the foot control being connected..The foot control is disconnected while sewing.] I tried numerous times the suggested fix...to Connect the foot control and restart the machine. No go. I waited many minutes. I jiggled the connection. Still no go. Any ideas? Labor day weekend....sewing to do, and I'm sure the shop will be closed tomorroww :(