It is installed, and while I'm opening my first ebook (downloaded from the site http://www.ellibs.com/fr) this error mkessage appear
DRM Système: 7 Etat: 4 Classe: 15 Code: 31 Message: Erreur lors de la réponse du serveur. Your Adobe software could not be activated. HTTP error on Adobe DRM Activator request. Adobe DRM Activator error. Client Code: 31 - HTTP Code: 555 Fault location: 15
What can I do ?
The file was served by Adobe Content Server 3, which is no longer supported. Your best bet will be to ask for a redownload or a refund.