@TeamYouTube I'm having trouble with changing my youtube banner what should I do??pic.twitter.com/Td2fCk1cwJ
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
Appreciate your efforts. Could you try clearing cache and cookies of the browser, here's how: http://yt.be/help/V8qD ? Also, try using a different browser or Incognito mode. Keep us posted.
It worked thanks!! 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.