Digital Editions - Error getting license

Hello ... my first trip to a computer forum.   I need help

The other day I installed ADE and borrowed a library book.  I was able to view it in ADE and transfer it to my KOBO

When I opened it on my KOBO I got a not authorized message.  I tried again and had problems

I tried ADE help chat and no help.

I uninstalled and installed again today downloaded the book again and now am getting this message in ADE when I open the book in internet explorer.

ERROR GETTING LICENSE.  SERVER COMMUNICATION PROBLEM

E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER

Help!  Please & thank you