Wordpress and Office 365 - Failed to obtain access token

I am using the Auth0 Login plugin with wordpress, and logging into enterprise office 365. I have been using this combination for at least the past year with no issues - but last week started receiving an error when attempting to login. The error states “There was a problem with your log in failed to obtain access token”. I backed up the site and removed all plugins except Auth0 login, and that didn’t help the issue. So I deleted the auth0 plugin and started again from scratch - creating a new client in the dashboard and everything. Still getting the same error.
To clarify - I am taken to the office 365 sign in page, and get the error once I enter my credentials and am supposed to be redirected to my site.
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