If you are experiencing problems with watching rewarded ads:
- Go to Settings
- Select “Privacy”
- Select “Apple Advertising” (at the bottom of the Settings screen)
- Turn on “Personalized Ads” (if it is already on, turn it off and on again to clear cache)
- Go to the "Settings" menu on your device.
- Tap "Storage".
- Tap "Internal Storage" under Device Storage.
- Tap "Cached data"
- Tap "OK" when a dialog box appears asking if you're sure you want to clear all app cache.
NOTE: Clearing app cache will not delete app data like account information. App data, like account information, can be deleted from the same menu - proceed with caution if you decide to do so.