It's difficult to say for sure what's happening in your situation. That specific error often means there is no account set up. Is it possible that what you set up was just an email forwarding account? With that type of account, there is no inbox, so logging in is not possible (or necessary). If that helps, please follow up here to let others know. Someone else may benefit from your experience. If not, please provide more information on your situation. Others may be able to chime in and give you additional suggestions.
JesseW - GoDaddy | Community Manager | 24/7 support available at x.co/247support | Remember to choose a solution and give kudos.