I use skeleton in my projects.
I had the same problem, but solution is quite simple. You just need to change link to user_timeline.json
Good: https://api.twitter.com/1/statuses/user_timeline.json?screen_name=episod
Bad: https://twitter.com/statuses/user_timeline/episod.json
Bad: https://api.twitter.com/statuses/user_timeline/episod.json
Bad: https://twitter.com/1/statuses/user_timeline/episod.json
If you want to know more about this problem you should visit this discussion https://dev.twitter.com/discussions/10803
