I just want to inform you that you can contact ProVari if bought their product from their site first hand. Cecilia has been very patient with me solving every problems and questions I
throw at her even Saturdays and Sundays. Great company beyond excellent standards of support. Give them a try.
Self help:
Use 97 or 99% alcohol aka isopropyl and long cotton swap perfered. ( I had to hit med supply in US, yours may vary) Clean the connector on the 510 used to connect your atty/carto. Second contact pin to clean in inside where your battery contacts. (this can be hard so long swap comes in handy here) ProVape will tell you this first too and I can second that is true. When your
juice gets on the contact it throws random error. The machine is tougher than ProVape is willing to give credit for, so many accidental drops and the chip/unit still vapes fine.
Note: Every once in a while you came across tough gunk that just will not go away. Im still sorting that myself. ProVape also state if its that bad you can give it full bath in alcohol then let it fully dry before use. (I have not personally given this test yet. I trust ProVape though)