How to read a book bought from Google Play in ADE?

I recently bougth a book from Google Play and wanted to read it in ADE. My ADE is authorized to my Adobe ID. I downloaded the epub-version of the book, and tried to open it in ADE, but it wouldn't open. It said that it is the wrong vendor ID.

Then I tried to de-authorize my computer and open the book again. Now it worked, but I want to have this book on more devices, so I once again authorized my computer to my Adobe ID.

When I try to open my book now it says: "Unable to download /.../ E_GOOGLE_DEVICE_LIMIT_REACHED" (see picture)

Can anybody please help me in this matter?