If the first time you used Patchs you registered using NHS Login, you will be unable to login using your email address and password.
Attempting to use your email address and a password will prompt this message:
If you subsequently try to request to reset your password, you will see this message telling you that you set up your account using NHS Login:
In this case, you will need to login to Patchs using your NHS Login. For help with how to do this, please refer to this article, which explains how to login using NHS Login.