The app cannot be installed
- Which platform? iOS (iPad), Android, Windows, Mac
- Which operating system (version)?
- With RCP, does the path have an umlaut in it?
- Does it have enough free disk space?
The ebook cannot be installed
- Is there an internet connection?
- Is the latest version of the app installed?
- Was the registration successful?
- Was the coupon redeemed correctly?
- Has the correct version of the Product Catalogue been loaded?