Official site
https://zel.network , as you can see, nothing can be read.
Tested on Opera browsers and firefox, both with and without vpn.
I'm interested in how flux works, you have an overview article describing how it works and how to get started?
I have just tested on firefox and it works fine here. Can you clear the cache/cookies of your browser and try again. Also try pressing ctrl+F5 to see if it loads prorperly.