Neowing eBook-Reader funktioniert nicht

It enables you to enjoy the manga comics and latest works by popular mangaka, anime gashu and illustration books, as well as artbooks and latest Jpop photo books and more eBooks published in Japan that are available at CDJapan, the online shop specialized in Japanese entertainment.  All eBooks you download will be stored automatically in the cloud library that our server hosts, allowing you to enjoy them on up to three devices you register.  All eBooks you purchase will be available for redownloads for an unlimited number of times, so you can enjoy them even after you change your device or upgrade the OS.  Once downloaded on the device, you will be able to enjoy your eBooks anywhere, even in places where Internet connection isn't available.  In case not enough memory is available on your device, it's OK to delete them from your bookshelves, because they would be stored in the cloud library for you to downloadagain anytime. 1.  It's easy and simple to use the app, and it's equipped with intuitive tools allowing you to bookmark your eBooks, write notes and comments, search for words, and more!  Organize your eBooks on your devices by creating bookshelves easily.  Download eBooks online at CDJapan.  Drag eBooks from bookshelves to other bookshelves.  Download and install Neowing eBook Reader from Apple Store. 2.  Neowing eBook Reader is an app that's compatible with iPhone, iPad, and iPod touch.  Bookmarks, the current page you're enjoying, and all other data are synced across all your devices.  If you are new to CDJapan, your customer account is created during the checkout. 3.  Adjust color and brightness as well as the font size to suit you preference.  And of course, the app is in English.  Launch the app and log in using your email address and password you register with your CDJapan account.