Don't worry, its a issue in iOS 7/8. I also have faced this irritating illogical issue but this alert will not appear in live app. My app is in appstore now and earning well.
The reason behind this is, conflict between live app installed in your device with sandbox mode apps. To get rid of the issue you need to reset your device then run your app. Issue will not appear again until you again install apps from app store.
Here you can read more about this: