Are you using Cloudflare Load Balancing feature or rather doing “load balancing” on your origin host/server via HAProxy or Nginx or some other?
May I ask what SSL option have you got selected under the SSL/TLS tab at Cloudflare dashboard for your domain ( Flexible, Full, Full Strict … )?
May I ask, do you plan to use only the one server?
What kind of approach do you have to configure Load Balancing with Cloudflare?
For a proper Load Balancer setup, I’d suggest you to have at least two servers, if so.
I can see your Website is loading fine from my end.