That’s really weird. I can see the regular site in my browser. Pingdom is the only one that shows the actual site. GTMetrix, FastOrSlow, and WebPageTest show the generic site.
This test shows a generic site around the world.
Open a Ticket and link them to this post. Maybe they can figure it out.
Login to Cloudflare and then contact Cloudflare Support by clicking on the Get More Help button.
EDIT: Just to be sure, can you go to the Caching settings page in the Cloudflare Dashboard and do a Purge Everything?