My blog titles are pointing back to home page – please help change that!!!!!

I have created a page called “Blog” to handle my posts. My home page comes up as it should as does my Blog page if you click it from the home page. The problem is, after I am directed to the Blog page, if I click on a title to the blog, it will take me back to my home page –

Sometimes, it takes me to no page at all and tells me it can’t find it –

How do I get the title links to just take me back to the BLOG page and not the homepage? Will this also fix the issue I have in search engines that find my blogs that return a page not found error?