Let’s forget it is www for the moment. Let’s call it noodle.
Do you want noodle.n8patty.com redirecting to n8patty.com? Yes or no? If yes, you need to fix the paths to your assets so it loads correctly. It no, don’t point noodle.n8patty.com at your server.
What you probably want is a redirect: when someone goes to noodle.n8patty.com, you’d like them to instead land on n8patty.com. That depends on your web server and DNS, and is beyond these forums, but I encourage you to look those up for your particular setup. 