Fullfilling a borrowed book in many copies

[avid_Odyssey5E95]

Hi,

I have borrowed a book from a library.

When ADE fulfills it, it shows 7 copies of it instead of one,

so I guess something is conflicting.

I can read the book on the pc, but when I copy it to my Kobo e-reader I can't open it.

I have borrowed two other books previously from the same library which worked perfectly.

Does somebody know what the problem could be?

Thank you,

Dimitris