I downloaded an epub library book and after attempting to install it using Adobe Digital Editions my e-reader is telling me "Your e-reader is not authorized to open this book. This book is protected by adobe digital rights management (DRM). Because you previously deauthorized (fyi both computer and ereader are authorized) your ereader you need to re-import the book using Adobe Digital Editions."
Have tried this process now a few times and get this error message.
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