A. 1. Ensure your iPhone is running the latest version of iOS. Go to Settings > General > Software Update and install any available updates. 2. Close other apps running in the background to free up memory. Double-tap the Home button (or swipe up from the bottom on newer models) and swipe up on apps to close them. 3. Delete and reinstall the Video Up! app. Press and hold the app icon until it wiggles, tap the 'X' to delete, then go to the App Store to reinstall it.

B. 4. Check for updates to the Video Up! app in the App Store. Open the App Store, tap on your profile icon, and scroll to see if an update is available. 5. If the app continues to crash, try resetting your iPhone's settings by going to Settings > General > Reset > Reset All Settings. This won't delete your data but will reset system settings.