GREVIT error: no connection could be made because the target machine actively refused it

Hi,

I just installed the latest version of Grevit and I tried to import 3 simple curves in Revit using an adaptive component. When I tried to send it, though, I got the message: No connection could be made because the target machine actively refused it 127.0.0.1:8002

I uninstalled and installed again the plugin and now whenever I click "Send" Revit gives me a fatal error (and I still got the same message in grasshopper). I checked the units in both platforms (they are both in mm) and the family and type name is correct. 

What should I do? 

P.S. I am using the student version of Revit 2016