Can't erase my authorization

[#1]

I'm trying to erase my authorization for adobe digital editions because the company i'm trying to read their book says it could possibly fix the issue.  They have emailed me a new acsm file but I can't remove the authorization.   Currently my book wont load and says there's an  "unknown Permission Error". This book isn't loading on windows 10 anymore,  initially it worked fine.  It worked on a edge 7 android phone but no longer and it never worked on a Samsung 7 or J7 phones.  Have no idea how to get this book working, very frustrating.   Help.., Please?

[#2]

I'm trying to erase my authorization for adobe digital editions because the company i'm trying to read their book says it could possibly fix the issue.  They have emailed me a new acsm file but I can't remove the authorization.   Currently my book wont load and says there's an  "unknown Permission Error". This book isn't loading on windows 10 anymore,  initially it worked fine.  It worked on a edge 7 android phone but no longer and it never worked on a Samsung 7 or J7 phones.  Have no idea how to get this book working, very frustrating.   Help.., Please?