What CNAME do you need to be created? And what’s stopping you from adding it yourself?
The URLs you’ve shared look like the URLs from the parking service we use for domains that are not in use. Unused subdomains of your domain will point here as well, but this won’t affect websites that you have already set up.
And if you’re created a CNAME record already but still see this error, then please note that any DNS changes can take up to 72 hours to be visible everywhere: When will my domain name start working