Comment section not showing

PHP Version: 7.2.19-1+ubuntu16.04.1+deb.sury.org+1
Wordpress Version: 5.2.2
Plugin Version: 5.8
Is Pro User: NO
Current Theme: TheGem
Website address: https://www.celebrityfanalyzer.com

I have IdeaPush installed. It works on the home page – it appears, people can add new ideas and vote.

But when it comes to comments, things aren’t working quite as expected. When I click on one of the ideas, one of two things happens:

1. The page looks good, but the comment section does not appear at all. Example: https://www.celebrityfanalyzer.com/idea/why-did-game-of-thrones-fall-apart-in-the-last-season/

I *think* this is what it looks like if you are logged in.

OR

2. Sometimes you click on an idea – example post: Can I get one more idea? – and you DO see the comment section, but none of the page styling is working, so the page looks terrible: https://www.celebrityfanalyzer.com/idea/can-i-get-one-more-idea/

This *seems* to be what it looks like if you are not logged in to WordPress.

How can I fix it so that the page displays nicely AND includes the comment section?

Thank you,
Alison

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