Broken Comments Page, Reloads when clicked

I have been making my own theme based on the Shape theme, basically I have used that as a template and modified the design to suit my site.

Somewhere along the lines I have totally broken my comments page… when clicked it just does nothing or reloads the existing page.

I have not touched the comments functions they can be viewed here: https://pastebin.com/qkHnbdSQ

And the site in question is https://ubuntuhowto.org

Can anyone see what I have messed up?

Many Thanks!