Instagram and ios7 not working??
Why won't it work?
iPod touch (5th generation), iOS 7
Why won't it work?
iPod touch (5th generation), iOS 7
See:
iOS: Troubleshooting applications purchased from the App Store
Contact the developer/go to their support site if only one app.
Restore from backup. See:
Restore to factory settings/new iPod
Instagram and ios7 not working??