“the requested url was not found on this server” and additionally a 404 not found error was encountered while trying to use an error document to handle the request.
That’s server related. If you’re running learn. on the same server you need to configure Apache / nginx accordingly and point it to the correct document root.
For now, set the “learn” DNS entry to (DNS-Only) and get that subdomain working with HTTPS at Bluehost. Once that’s all working, you can proxy it again and it should be fine with Cloudflare.
Thank you! I am now getting a notice that says “your connection is not private” with an error that shows NET::ERR_CERT_COMMON_NAME_INVALID
I can either click on “advanced” or “back to safety” (which goes to Bluehost)
A 522 error typically happens when Cloudflare requests to the origin (your webserver) get blocked. Review the suggestions in this Community Tip for troubleshooting ideas.