Hey guys. I posed up a fix for this problem with IOS 9 not working.
Title of my post is (IOS 9 FIX TO GET THE AMPLIFI TO WORK AGAIN)
Its very easy fix and one has already got Amplifi up and working again....
I got hit with the IOS 9 updated on 9/25/15 and looked up why Amplifi was crashing. I did not find an answer. So it worked ok with the IOS 8.4.1 so I found a way to go back to the old IOS. This is not a joke.... This was the only way I was able to get the Amplifi app to work....
You Tube video of how to do this that I made as well.
Title; Line 6 Amplifi & iPod firmware IOS 9 fix
url... https://youtu.be/6UbaguNQWiA