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
This message appears on my Hummingbird -> Performance Test TAB.
During the chat, Performance starts to work when I made a plugin conflict test and disabled Gmail SMPT.
After that I decide to delete all other plugins. Now on my site I got only:
WPMU DEV Dashboard
and still performance does not work.
PageSpeed Insights says:
Deciding the main resource failed. Please ensure that the page loads properly in a browser`
But another page speed sites works fine.
The cache is disabled on Hummingbird.
PHP version: 5.6.30
In ticket data you will find a link to debug.log
I created also staging site. Please check data from ticket.