Digital Editions 4.5.1.11 iOS crashes after update

The exact same thing happened  to me. Try to open a book and the app crashes. I contacted Apple support but was told to contact Adobe. I can find no way to contact a real person or at least get an email response.

I have a related issue using Digital Editions 4.5.1.11 and iOS 12.4.7 iPhone 6+

I can read simple; books like Adobe Systems 'Getting Started with ADE' and 'The Adventures of Sherlock Homes'

When I create an EPUB from the new Apple Pages EPUB export, those books read fine on ADE on my iMac. But when I download to my iPhone iOS, they crash upon open, or display really horribly.

Now I find even versions created from iBooks author will no longer open on ADE.

I've tried the usual: clearing memory by holding down the power off and home screen.

Also, books imported to my Library on my Mac don't transfer to my iPhone anymore.

I note on the Apple App store more than several complaints about the iOS version of this app. I lend my criticism.

https://apps.apple.com/gb/app/adobe-digital-editions/id952977781

Example posting:

Terrible. iOS version useless, macOS version very poor.

Not only did it fail to load an Oxford University Press book sold by an ePub book site specifically for this app. Downloading one of the sample books on the app’s own website resulted in that book appearing in iBooks, in which it cannot open. It did not appear in this app.

The macOS version of Adobe Digital Editions (not on the App Store, i.e. beware) did work, up to a point. The typeface was terrible (very low res), navigation wasn’t a patch on Kindle’s, and the claimed ability to read the book on other devices defeated my ability to find it.

How did this app get through Apple’s vetting?

My ADE was fine until this update. When I touched a title, the app would close down. I contacted Adobe who said they no longer support ADE. I unstalled (losing 23 books I was to review - I'm a book seller) and reinstalled, but now there are dozens of grey "ghost" books showing up. Ridiculous. If the app no longer works, the app should be removed from the app store. 

Also crashes and removes ADE when updating to 4.5.11 in Windows.