Trying to connect site blog feed to Google News but RSS Feed isn't working?

Site URL: https://www.theradicalbalance.com/all-stories

I am trying to get my site listed on google news. Have been working my way through the process, and as part of it I have to include the RSS Feed for my blog section. The blog I'm trying to list is: 

https://www.theradicalbalance.com/all-stories

And the RSS I'm trying to pull is:

https://www.theradicalbalance.com/all-stories?format=rss

Google is saying this RSS url is verified, but isn't successfully pulling any articles from it. It could be that I have written the RSS Feed url wrong or something like that, but I don't think so. I tried checking my RSS feed here and it pulls up numerous errors. Not sure if these are the problem or what, but I'd love any help at all from anyone who has more experience with RSS Feeds or integrating with Google News.

Many thanks

The validator says your feed is valid despite the warnings.

Have you given Google some time to include your feed? How long did you wait?

I have the same problem. I made all the processes to integrate my news site with Google News, but doesn't work. Likewise, I've started the process five months ago, and it still does without appearing on the search by Google News. 

Does someone know how it works with the sitemaps of Squarespace? I think that we have an indexation problem with the sitemaps. 

Same problem here. 

News page https://www.djxshow.com/news/pageslug?format=rss 

Google News publisher wont publish with this. 

@HazanMediaGroup The format is:

https://www.yourdomain.com/pageslug?format=rss

In your case, pageslug is /news