Apple officially supports the current release of iOS and two versions back. If you’re building with iOS 9, then only iOS 8 and iOS 7 are supported. If you want to still support iOS 6 (under 5% of installed devices), you’re going to have to stay on an older version of Corona, but by February, Apple will probably require everything submitted to be based on iOS 9 anyway. They did this last year with iOS 8.
Many thanks to everyone involved in contacting Vungle for the recent fix. I can confirm Vungle Ads are working for iOS (version 7+)
Thanks for fixing this guys - Its solved my problem too.
I raised a bug (Case No. 43109) and it can now be closed 