With the NFHS alignment with DragonFly, the Arbiter Central Hub is no more.
At the moment your choices are the NFHS app or purchase online via Amazon, iTunes, etc.
I contacted staff at DFMax and their reply was it will be implemented "in the near future" so if you are a DragonFly state, you might want to wait or lobby to have the NFHS app added to your state registration.