A. 1. Ensure that your iPhone is running the latest version of iOS. Go to Settings > General > Software Update and install any available updates. 2. Clear the app cache by deleting the app and reinstalling it from the App Store. This can help resolve any temporary glitches. 3. When submitting assignments, try to do so over a stable Wi-Fi connection rather than cellular data to avoid interruptions.

B. 1. If the issue persists, try submitting assignments in smaller batches if possible, as large files may cause glitches. 2. Restart your iPhone to refresh the system and clear any temporary issues that may be affecting the app.