Cannot get WordPress SSO to work

I have tried everything and am getting the following error message:

There was a problem with your log in: No verifier returned from client. [error code: invalid_request]

WP: http://dressings-sauces.org/wp-admin
Auth0: dressings-sauces-org
API: https://dressings-sauces-org.us.auth0.com/api/v2

Hey there!

Unfortunately I’m not a WordPress master at all so won’t be able to help but added a few tags to your questions so that others who are able to help will find it more easily.