If you are experiencing issues with your Tablet application not receiving orders - you'll want to go ahead & clear the application cache.
Clearing the application cache removes temporary files and frees up memory - your personal settings or information remain intact.
Steps to clear application cache:
Be sure you clear only the application cache and not the application data.
From the home screen, tap the All Apps icon.
Scroll to and tap Settings.
Scroll to and tap Application manager.
Tap the All tab.
Scroll to and tap the Online Ordering Restaurant Manager.
Tap Clear cache.
You've now cleared the application cache.