Why can I no longer download an e-book to my device? I have installed a reader

The e-book reader Adobe Digital Editions has a new version out and e-books can no longer be opened with the old version. You need the new version!

Download the newest version:  https://www.adobe.com/fi/solutions/ebook/digital-editions/download.html

First uninstall the old version of the reader, restart your computer and then install the new version.

For further information:
Adobe Digital Editions – Learn & support
Adobe Digital Editions – Download