If you need to change the email address associated with your RIparide account, you can do this in your Profile.
Go to your Profile
Scroll down to email and update the address
Go to your email inbox and follow the link to confirm your new email address
If you get an error saying 'email is already taken' it means you already have a Riparide account linked to that email address. Try logging out and then logging in with that email address. You can use the Forgot Password tool if you can't remember your password.