[Hummingbird] Hunningbird pro

I can't get the plugin to run, it has run before successfully - tried three times today and keep getting :
he performance test didn't return any results. This probably means you're on a local website (which we can't scan) or something went wrong trying to access WPMU DEV. Try again and if this error continues to appear please open a ticket with our support heroes

TRY AGAIN SUPPORT