due to recent Twitter API changes, it is highly recommended that you replace your every source feed URL which pattern looks like:
with the new one according to this template:
user_id is the ID of the user for whom to return results for.
Since old-style Twitter timeline sources will most likely stop working soon, we advise you act now and not put it off till later.
If you need more details on Twitter API changes, please visit this page.
Feed Infromer support team