Recently active topics in Soup tagged with feedburner

I pasted a feedburner form in my sidebar and now i can't edit its content anymore. Is there a way to reinitialize the whole content or even the sidebar itself?
thx

loicleul.soup.io

1. Added original feeds
2. Some didn't look good, were too long or content was missing
3. Then I deleted the feeds and all the content
4. I added FeedBurner feeds instead of the original feeds

The soup page looked correct 1st but then I checked the RSS output.

My soup (http://merz1.soup.io/) and the RSS feed now show content from the original feeds and also from the FeedBurner feeds.