"Book is licensed for different user" is the error message

[IMPYNussbaum]

I purchased a book from Island Press and was instructed to open in Adobe Digital Editions.  I downloaded that and have an account. The icon for the book appears but the status for it is the above error message.   Is the 'different user' the vendor I bought the book from??? i .e., do I need to get them to do something or is this related to my Adobe account.   HELP.

[IMPYNussbaum]

Not one is responding.  I contacted Adobe and were told they would not provide support. I had to use the forum. BUT this problems many people have had and Adobe does not weigh in with solutions.  Instead, many are frustrated and really ticked off with Adobe.  I don't get why they don't provide support.   We purchase books that are costly and we pay subscriptions to Adobe.   Come on, please help Adobe