Links to blog posts not working

I’ve just installed the Jenny theme onto my WordPress site. I primarily use my site as a static CMS style webpage, with blog posts on one of the pages. I’m having problems with the widget on my homepage which should be linking to my recent posts. It’s picking up the title of the posts fine but the links aren’t working (I get an error 404 message saying the page doesn’t exist). What am I doing wrong? Is it the way I’m creating the blog posts in the first place?

My URL is https://www.feelingroovyphotography.com

Thanks in advance for any advice.