Board Thread:Support Requests - Getting Technical/@comment-7132193-20130618183029/@comment-1330470-20130618183814

From the latest technical update: Update on Twitter streams: We announced Twitter's change in API code back in March of this year. Users were urged to switch over to Twitter Timelines. Twitter has finally retired its old API and is only supporting the new Timelines. You can read detailed documentation on Twitter's site. If your Twitter feed has stopped working, please read our help page for step-by-step instructions on how to set up the new Timeline on your wiki.

Best follow the instructions there.