Shopwave periodically release app updates through the Apple app store with new features and fixes.
Your iPad may be set to automatically update all installed apps. If it is not you will need to update your app manually.
An internet connection is required.
To update the Shopwave app manually, open the 'App Store' app on your iPad.
Select 'Updates' at the bottom right.
Select the 'Update' button next to the Shopwave icon.
After the update has installed, open the app and continue using Shopwave.