Message received from AEditions when dragging library epub download to Kobo Aura. "Error getting License. License Server Communication Problem: E_ADEPT_REQUEST_EXPIRED"

[Gma B]

Message received from AEditions when dragging library epub download to Kobo Aura. "Error getting License. License Server Communication Problem: E_ADEPT_REQUEST_EXPIRED". I have reinstalled Adobe Editions, re-downloaded book, and done a factory re-set on Kobo.

My computer is a MAC and is Adobe authorized.  Help to fix this please.Adobe Digital Editions