As for the error with the keg fittings, I agree contact customer support and they will do everything they can to help. They are top notch on support. I had an issue similar before and it was the pump that pulled from the keg. It ended up being a loose terminal connector on the motor itself. Easy fix once it was diagnosed.
Sounds like something to that effect or even an issue with the lines. Although one e-mail a day from Support is frustrating.