Thanks for this suggestion sbradshaw! I've got my current running/working (after re-install) App Instance ID of 80169462-5608-4217-9db9-6d8c5eeac46 which I will send to the development team (with this thread URL) tomorrow if/when the application stops working again tomorrow.For next steps, I'd recommend deleting and reinstalling the app, and while it's working, get the App Instance ID. Then when it starts crashing again, you can send your App Instance ID to the support email (listed at the bottom of Gospel Library Support), along with a link to this forum thread for context.
Concerning leaving it running: I have attempted to leave it in the background, and swipe it out, and force quit; none seem to impact how it responds the next day. At this point, I'm just pleased that it is working after re-install using the APK file. It had gotten to the point where even re-installing from the play store did nothing to help. In this state, I can at least re-install it Sunday morning and use it for my meetings :/