The Facebook Offer Shortcut displays the following error if we can’t retrieve your app’s publicly available meta data:
This could be because you’ve provided an invalid app ID or—more likely—because your app is still private (e.g., you’re using a development or QA version of your app).
If you would like us to populate your app’s meta data manually and avoid this error, please email merchantsupport@trialpay.com and provide us with:
- app ID #
- app name
- app developer
摘自：http://help.trialpay.com/credits/?p=68
