That's it Twitter this weekteam A new iOS update has been released, for “bug fixes” but it seems that the new edition came with a bug.
Device owners with iOS they report to iTunes that the 6.1.1 version of Twitter came with a bug that prevents the application from starting. It is not clear if the problem αυτό τους επηρεάζει όλους ή μόνο ορισμένες Appliances which have been "hacked". However, either way Twitter should release the new version soon.
If you already have the latest version installed, unfortunately there is no way to "downgrade" it to the previous one, except maybe if you have the old IRA on the bookscase of iTunes or maybe in a recent backup.