Login Bugs

I have been having difficulty signing in to my account. My game was bugging out offline earlier today so I reinstalled it after wiping the cache. When I got back on, I tried to log in and it kept giving me error codes such as "crossbow", "creeper", and "glowstone". The website it was taking me to login was https://sisu.xboxlive.com/ and after I logged in, it asked me "Are you trying to sign in to Minecraft PE: Kindle Fire?" I pressed the continue button but it did nothing. It was the same for the cancel button. I have chrome on my kindle, so I had the login open in Chrome. Nothing seems to work.

I think that this might be a bug.