Looks like your email is already verified.
Please update the app. Make sure you are installing version 4.18.2.
If you already installed 4.18.2 and the problem persists, try reinstalling.
I'm having the same problem. When I try to like a comment, I receive a message telling me that I need to confirm an email confirmation, but no email confirmation has ever been sent to me, as far as I can tell.