wp wpdiscuz old comment still visisble

Hi My name is manju and i host a website called: mathomathis?

Today(26/06/2020), i installed the wpDiscuz plugin to my site, even after doing that, the old comment box is still visible, need support to remove it. I am unable to find options how to remove it.

File has been attached and FYI, you can navigate to the link: https://mathomathis.com/vastu-for-house-interiors-103-conclusion/ and check the comment section, there are 2 comment box.

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