Trying the new Youtube beta studio sums up @YouTube @TeamYouTube in a nutshell.pic.twitter.com/15t2Rc8edf
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
Have you tried accessing http://studio.youtube.com directly? It looks like the kind of error you'd get when you access with an incorrect URL.