NIVAC: Isaiah Commentary Section Crashing

On my iPad, I am able to access the NIVAC: Isaiah Commentary. I can access the Introduction section but not the commentary section. When I do, the module crashes repeatedly. I used all the troubleshooting tips in the App settings in System Settings for Accordance. I am not sur how to reinstall the app within the iOS interface. Do I need to uninstall/reinstall using the desktop version?  Thanks for any help.