Rss Feed

I am trying to allow people to subscibe to my posts using social sharing toolkit. The facebook and youtube buttons work fine, but hen I do the rss feed, it just shows all the code. How do I get it so that people can subscribe to my posts for updates using this plug in? Do I need to have something else installed to convert the code? Is there a different way to enter the url so it comes up differently and not just as code?
Right now when you click the rss button you get:’This XML file does not appear to have any style information associated with it. The document tree is shown below.’ followed by all the code.
I would like to be able to have them click the icon to subscribe but that isn’t an option currently.

Thank you.
Linda Filipiak

https://ww.wp.xz.cn/plugins/social-sharing-toolkit/