Signals Notebook user locked out after too many unsuccessful login attempts

Keywords: Signals Notebook, login, account, blocked, unblock.

Details:

If the user tries to log in repeatedly with incorrect credentials, eventually they will be locked out. They will see the following error:

"Your account has been blocked after multiple consecutive login attempts. We've sent you an email with instructions on how to unblock it."

It looks like this on the login screen:

They will also be sent an email that looks like this:

Clicking on the “UNBLOCK” link in the email will unlock their account. They will be presented with this screen:

 and they can reload the Signals Notebook URL and try logging in again.