That page looks like one from our domain parking page that we place on subdomains that are not in use. It’s normal to see it for newly added domains, but it usually disappears within 24 hours, and is basically guaranteed to be gone after 72 hours. So after five days, you shouldn’t see that page anymore.
As far as I can see, our nameservers are set up correctly and is responding with your website IP address everywhere.
You could still try to clear your computer’s DNS cache, or switch to a different DNS resolver like Cloudflare’s 1.1.1.1 to avoid any issues with old DNS information being cached somewhere on your network.