Thank so much - so I checked the feed in the validator you sent and received the following:
http://transformingdivorce.co.za/feed/
It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
I kind of understand what is being said here but Im not 100% how Im supposed to solve this? I have no RSS plugins installed on my site at the moment.