I apologize for the delayed welcome and response. Are you referring to allowing your website customers create accounts? I have included the link to the help article that has step by step instructions on how to grant access for customer's to create accounts.
If after following these instructions and you are still not able to allow your website customer's to create accounts, my next best advice is to reach out to GoDaddy Support for an account review. Again I do apologize for the delayed response and I hope you have a great day!