Hello - we have seen reports of a crash on iOS 12.0, 12.1, and 12.2. We are hard at work getting a patch into review in the App Store. In the interim, we recommend updating to 12.3 or newer. We apologize for this issue!
A new version has been released in the App Store that should address this issue! Thank you for your patience.
Will this also assist Android phones because I am having the same problem. I can't open any document I even deleted and downloaded it again and it is still giving me the same problem