Your domain will have an IPFS hash already assigned when it is created. This redirects to your ud.me profile. You will need to remove this before redirecting your domain to a Web2 domain or launching your own site.
To start, click on the domain you would like to manage on the "My Domains" page.
Now click 'Website' then click remove. You will need to sign a transaction with your wallet and wait for the transaction to go through:
If you have an existing IPFS hash you can add it to your domain: