iPhone failed to load book because the requested resource is missing
I purchased a book in ePub format and have copied iBooks ( iPhone6s - iOS9.3.1) but opening get the message "failed to load book Because the requested resource is missing", but the same ePub file in a iPhone5C (iOS 9.3.1) if displayed correctly, also in the computer reads correctly with any reader ePubs.
I have other ePub files in my iPhone 6s and can be read correctly .
Someone can help me to solve the problem (I restart the phone with power button + home, I've deleted and re-downloaded the file and copy to iBooks)
iPhone 6s, iOS 9.3.1, iBooks