Hummingbird Performance Test Failure


When I run the performance report I get the following message:

"The 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"

Tried it a few times with the same result. I've enabled support access so please have a look and let me know if there is anything else I can do. Thanks,