Air Vantage account managment and sinchronization problems?

Hi all!
after reading many threads, I created another air vantage account and actually see the correct dashboard:

However, on the home page, unlike what is reported on the guide, I do not see the option to register a mangOH. Anyway I went to the Register and found this:

while in reality I should see this screen:
So as you can understand, I don’t have the opportunity to enter the ICCID parameter of the SIM, but only the parameters of the mangOH. So I can’t get system synchronization.

Does anyone know how I could go about having a properly set up AirVantage account?

I solved the problem connecting the system to AirVantage using these commands: