Themes, posts, and plugins can affect the RSS Feeds.
All that said… there’s something flaky on your site itself where my first visit was fine but the next and subsequent visits presented a header with ad and then a blank page except the header.
The fourth visit rendered a page sort of like the first but no images.
The ‘Com WordPress’ in the first error you mentioned makes me think it might be Jetpack causing some of this but I’m also a bit mystified with the ‘blocks’ items in your menu.
I really suspect your plugins on this or some ‘ad code’ javascript.
The good news is both my newsreader and my content aggregator accepted your feed with no issues… The bad news was the validator couldn’t see the file.
I was doing some changes, but I would still like to know how to resolve these issues if possible. Thanks.
Still looking for solution. Anyone know how to edit RSS output?
Does anyone have a solution? Been researching and can’t find anything specific to style attribute.