First, please use the Markdown features of the board when posting code & error messages.
Second, the error seems to state that the RSS items in that newsfeed can’t be parsed by the module. The links seem to work just fine, so I suspect that the newsfeed uses some more advanced techniques that aren’t implemented by the Newsreader module.
I would recommend switching to another news feed just to test the functionality. If the Newsfeed module works with a different source, then the problem is likely confined to that source.