Error retrieving information from server. [DF-DFERH-01]
DF-DFERH-01 is an undocumented, server side error that can have many causes. It is probably generated by the backend as a general "Access denied" error that just doesn't map properly to a HTTP status message. Known causes are:
- Requesting service with an expired auth token.
- Requesting service with a blocked auth token.
- Requesting information using wrong url parameters.
The first two can be fixed by refreshing the auth token (logging in again with username and password). In case the account got blocked, it must be unblocked by logging in via webbrowser and confirming the login attempts ("that was me") in the list of recent login attempts.