following the link I found this problempic.twitter.com/8scVhwOTnY
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I can't get to the site right now but I'll ask someone to recheck permissions. You do appear logged in!
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.