If you created your account using Google or Facebook, then you may want to set a password on your account as well. This will allow you to login using email and password.
To set a password on your account, log in as normal and visit your user preferences by clicking on the Menu.
Then scroll to the bottom of the menu, click Settings, then Account Settings.
Select the 'Security' tab.
Enter your new password into the 2 fields. Click 'Change Password' to set a password on your account.
You will now be able to login to your Ayoa account using email and password, as well as the normal Google or Facebook login.