I need help with commenting plugin

Edit the page and make sure that comments are enabled in the Discussion box below the editor.

If you don’t see a Discussion box below the editor, hit the Screen Options tab at the top-right, and check “Discussion” to display the settings. Then, make sure that comments are enabled in the Discussion box below the editor.

i have done this before but still not working ??

btw can I use any plugins to make a comment part for any page?

Right now, the page you linked to doesn’t exist. What is the correct URL of the page with the problem?

for example go ahead for this
https://imeo-official.com/knowledge-base/a-new-era-of-education/

you see a submition form which was added by ninja forms plugin
i need the original wp comment tool

That’s still “Oops! That page can’t be found.”

Screenshot: https://screenshots.firefox.com/6tpisfCKCreRL1pe/imeo-official.com