Having Troubles After Latest Update

Certain headings are showing up before they should, in ways that I haven’t written the post.

See: https://www.swiftsalary.com/babysitting-job-apps-and-websites/

14. Sitter.com is showing up at the very top of the post and this is not how I’ve written it. It’s also messed with my sidebar (comments shouldn’t be there) and my social warfare buttons aren’t showing anymore.

This is only happening on some of my pages though (I haven’t checked them all yet). For example, this page is fine: https://www.swiftsalary.com/apps-that-pay-you-to-walk/

On the pages that are messed up, when I delete the [toc] shortcode, everything goes back to normal.

The page I need help with: [log in to see the link]