No comment box when using theme Carton

Hi rb1958,
This is a theme issue, it seems they don’t use standard WordPress comment_template() function. Please ask them to check this issue. There is nothing to fix in wpDiscuz files.
Also please read this support topic, may be you miss-configure some setting: https://www.gvectors.com/questions/wpdiscuz-comment-form-is-missing/

Thanks a lot for fast response.
Will do so.