Trouble with RSS Feed and MailChimp

Hello – I’ve recently moved my site to www.ads-software.com and am having trouble setting up an RSS Email Campaign with Mailchimp. I’ve reached out to MailChimp and they said the following: “Trying to preview the Campaign we were seeing the same thing that you were seeing. To try and discern why this was happening we took the Feed URL from the Feed step and ran it through a validator to see if there was anything off with that feed.

According to the Validator, it appears that the feed doesn’t validate. As a result our system is unable to detect or pull information from it to make that email. To resolve this we recommend reaching out to WordPress support as they would have the tools and capabilities to validate this feed for you. Just share with them this conversation, and they should be able to take it from there.” Can anyone assist with how I can validate my feed?