Unable to open an ebook from local libray

I downloaded a ebook from my local library to Adobe Digital Editions 4.5.  I was able to load on to my Kobo ereader, however I am unable to open it.  I receive the following message "This document is protected by Adobe Digital Rights Management and is not currently authorized for use with your Adobe ID.  Please sign in with the authorized Adobe ID and try again".  I have tried deauthorizing my device and reauthorizing it several times.  I have tried removing and readding several times.  Nothing works.  Please help!