Error message: E_ADEPT_ITERNAL

I am trying to open my ebook. But I keep getting that message:

Activation Server Error

code: E_ADEPT_INTERNAL

Why is this happening? Do you have any idea?

I already authorised my computer last weekend and read some of the ebook. So it worked. This is not my first time.

Thanks.

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Participating Frequently

Its a problem with the eBook itself. Have you try to redownload with other browser?

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