Error while registering a patient with a non-provider account

A 'UI Framework Error' occurs when the user tries to register a patient with an account with is not a provider.

Steps to reproduce:

1) Create a new user account.

2)In the "Capabilities" section, check the "Registers Patients" checkbox.

3) Login with the credentials of the newly created account. 

4) On the current screen, click on "Register a patient" button.