App rejected due to IP6 problem

Unity Engine
,
1

We discovered one or more bugs in your app when reviewed on iPad and iPhone running iOS 10.3.2 on Wi-Fi connected to an IPv6 network.

No in-game features are responding after launching the game.

I dont know whats problem is. my game only uses ads.
I am on 5.6.2
Any1 knows how to fix problem

2

Really need help.heres wat i got from apple
We discovered one or more bugs in your app when reviewed on iPad and iPhone running iOS 10.3.2 on Wi-Fi connected to an IPv6 network.

Specifically, none of the options in your app will respond when tapped.

I have no idea wats wrong. It works fine wen i test in my device