Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Like Super said, your Smogon password won't work for the Shoddy Smogon Server. So you'll need to create a new account, and use the password of the account you create.
Your Smogon account is not the same as Shoddy account.
You need to register a Shoddy account then log in using the password you used to register. It's in the Register tab on the right next to Log In on the welcome screen.