Sometimes ADE gets its registration/activation confused and in a semi-authorized state. Unfortunately, it often then gives misleading error messages about what is wrong. Messages like those you are seeing seem quite a common form of wrone message. Try completely removing any authorization using ctrl-shift-D to ADE (cmd-shift-D if on Mac). Restart ADE, and then reauthorize with your Adobe ID.
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Re: I can not read my books in another device
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