Xml Rss feed errors

Hi, I’m running an auto social poster from wordpress posts using an xml rss feed. It was working nice but all of a sudden it started glitching returning an error “not a feed” randomly. It does not happen every time, sometimes it works as intended somethimes not.

Also in several occasions it retrieved random old entries from the feed and not the last ones as intended.

Ani hint on what’s happening?

Attaching error’s screenshot and flow blueprint.

blueprint (1).json (536.8 KB)

The Problem now appears to be parmanent. My workflow is stuck. Anyone can help?