Amazon Kindle Android app now keeps directing to amazon.com instead of opening the app itself

Hey, guys! The thing is, before I updated the app, it seemed as If the app would work in another "platform". I could read my books and whatnot... But now, upon tapping the app icon, my Chrome browser pops up and I have to fill in my email and Zip code do proceed, (I'm stuck here!) unlike some time ago I'd be good to go with a single click. Any would be welcome!! Thanks in advance!!

Welcome to Android Central! Try going to Settings>Apps, selecting Chrome, then Clear Defaults. Now see if you get a choice of which app to open links with.