My Single Post Page Ends Up W. More Stories & Tag Div Composer Disabled On Post

Hello –
For my Newspaper theme, whenever I post a story, url page posts more than one story. For example, my Martha Stephens interview is not just the post, there are several stories that go all the way to the bottom. Here’s a bit.ly link for reference: https://bit.ly/2VoJtd5

Also TD Composer is Disabled on My Posts Page. I can only use TD Composer for Front Page, Home Page, Footer, and Header.