HTTPS not working

I added a custom subdomain to my app and I’m using an external DNS provider to manage my DNS records. I’ve already added the CNAME to my DNS records but i stilll get a warning telling “fulfill.kimcmarket.com doesn’t appear to be served by Netlify” in the HTTPS section. I’ve waited about a day and a half. Wondering if I should wait a little longer to resolve this issue or maybe I incorrectly added my DNS records.
Without the HTTPS my app cannot function correctly.

app: https://gtkfrontend.netlify.app/
subdomain: https://fulfill.kimcmarket.com/

there was a typo on my part but I fixed it but now netlify is now looking for the wrong domain


It looks like the site is now up and running with SSL: https://fulfill.kimcmarket.com/ .