A. Check for app updates in the Google Play Store. An update may fix bugs that cause the app to crash. Go to the store, search for FreeStyle Libre 2, and update if necessary.

B. Clear the app cache to improve performance. Go to 'Settings' > 'Apps' > 'FreeStyle Libre 2' > 'Storage' and select 'Clear Cache'. This can help resolve issues with the app requiring restarts.