How to enable Cloudflare for a subdomain?

[user671]

Hello,

I’ve got a wordpress site: eg www.website.com which is pointing to/hosted by cloudflare
I’ve added subdomains: eg www.green.website.com but a server error msg appears.
When I asked my webhost i was told to add the subdomains to cloudflare but i’m not sure how. Do I create a new account?
I’m on the free package.

thanks

[Judge]

Please read Subdomain too deep

[user671]

Thank you so much.

[user671]

I’m sorry if this is obvious. I’m a complete novice.

I’m following the steps here:

SSL/TLS not working on subdomain

Please note, this tutorial post contains links to external sites. I am not endorsing any external links. This tutorial post covers the first steps you should take if SSL is working on your main domain, but not on a subdomain. 1. Is there a DNS record for it? Check the DNS app in your Cloudflare dashboard to see if there is a DNS record there for that subdomain. 2. Check that the DNS record is working correctly You can use a tool such as https://dnschecker.org, enter the subdomain.domain.com …

I’ve added to cloudflare’s dns (green.newsite.com)
and now I get the following error:

Sorry, this page doesn’t exist.
Please check the URL or go back a page.
404 Error. Page Not Found.

This is a change because before it said server error

I then checked:

UltraDNS Enterprise-grade DNS with 100% Uptime | Neustar

and without the https:// part, the domain shows up on ultratools
eg
green.newsite.com

Yet, there’s still the 404 message

Is there something obvious I’ve missed?

[pigeonburger]

Your site isn’t accessible at all.