Hi,
Thank you for the information, the proxy settings seem to be correct. I think it’s a Cloudflare dns server thing. You could try changing what it says on their troubleshooting page:
2. Update the Cloudflare SSL option in the SSL/TLS app Overview tab:
If currently set to Flexible, update to Full if you have an SSL certificate configured at your origin web server.
(Not Recommended) If currently set to Full, update to Flexible.
You can see all the information here https://support.cloudflare.com/hc/en-us/articles/115000219871-Troubleshooting-redirect-loop-errors
Regards