Setting up www subdomain for domain name

I followed the guide for setting up domain names and it works for micahshell.me, but not when I put www.micahshell.me. Under the dns records I put www in the hostname under A/AAAA Record's and put in the server ip. With the www in the url I get a server not found error.

I also used this guid: https://www.linode.com/docs/websites/hosting/set-up-web-server-host-website/

To setup a static nginx server. I've also setup cert bot.

Thanks.