Be sure to enter the right email address you used when you signed up, and the password you choose for your first access. If you forgot your password click on the "forgot your password?" button you can find in the login page. We will send you all the instructions via email to help you setting a new password.
If you signed up using Facebook, click on the "login with Facebook" button. If the problem persists write to us by filling the form that you can find in the Contacts page.