Hi @beithazohar,
This issue comes for the page template of your WordPress theme or from the Learn Dash plugin. There is no way to fix it from the wpDiscuz side. Your page template loads the comment function twice. If this website is not live and you can change the WordPress theme, please do that and check it again. If you still see two comment sections, you should contact to the Learn Dash plugin and ask them about the page template. They should have some template file which works for this page. They may help us understand the issue.
And a few recommendations to do:
1. Try to remember, have you made any changes in the Learn Dash page template? Is this a customized template file?
2. Check all options of Learn Dash plugin and find options related to comments. Try to disable the native comment.
3. Go to Dashboard > wpDiscuz > Forms admin page, edit the Default Form and leave a screenshot of that form settings (I need to see for what post types it’s enabled).