Fail the open ebook because of the authorization

The thing is that I tried to open an ebook that I bought from the bookstore, and I chose to not using ID to authorized my computer in the first place. Then I deauthorized the computer and add the ID to the book, it all went well and I successfully opened the book again. But when I tried to open it 10 mins later, it shows that I have to log in then displayed' E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER"', I have tried so many times to reopen it and deauthorized, or with a new link that the bookstore provided. It all failed.