A. 1. Check if the camera is enabled in the app settings. Go to Settings > Apps > VooV Meeting > Permissions and ensure the camera permission is granted. 2. Restart the app and your device to resolve any temporary issues. 3. Ensure that no other app is using the camera at the same time. 4. Update the app to the latest version available in the Google Play Store. 5. Test the camera with another app to ensure it is functioning properly.