A few years ago I set up a website (https://suspicious-snyder-cc9987.netlify.app) with a custom domain (firstnamelastname.com) through netlify. I ran into some Git issues towards the end of last year and haven’t updated my website since.
I’ve recently solved the Git issues, built a new site, and have deployed to netlify. I want to transfer the custom domain from my old site to the new one. However, when I try to add the custom domain to the new site (by navigating site > site settings > add a custom domain to your site), I get a message saying that the domain is already registered.
Is there a way I can de-register the old site and move the custom domain name to my new site?