App Rejected with iOS IPv6 network

Question

Yesterday, I submitted my app for review, but I got this message from Apple:

We discovered one or more bugs in your app when reviewed on iPad iPhone r

Answer 1

I think Apple has something wrong with this error!

I have an app (ionic app) rejected 3 times (during Nov 2016) for the same error and lastly accepted without making any change related to IPv6!

You may need to check your app for startup errors if you think that you have nothing to do with IPv6.

By the way: I did not check IPv6 compatibility on my app, and even more the app - in its inner views - has a connection to a webpage that hosted on a shared host with no IPv6 support!!