Iphone feedback function

[cloudhorizon]

When I try to use the feedback function on the iphone app version of duolingo, it gives me a notification saying:

"You do not have an email account set up on this device"
And then tells me to add my email on the app settings, which I proceed to look at...
Only to find that my email is indeed there.

So I'm not sure what I'm supposed to do. :I