crashes – LockLizard Safeguard Viewer Review

Crashes every time I select a document in the app for an iPad mini using iOS 9. Please please help fix this, I have an online textbook I have not been able to access. Edit: now crashes when I select a textbook on the iPhone app (iOS 10) and does not allow me to send crash reports on either device.
Review by annnn98465736264 on LockLizard Safeguard Viewer.