You should disable the “Allow Comments” option. This option is located under post/page editor in edit post admin page. Just edit the post and follow these steps:
Find the “Discussions” admin-box below and uncheck the “Allow Comments” option.
In case you want to say thank you! 🙂 We'd really appreciate if you leave a good review on the plugin page. This is the best way to say thank you to this project and the support team.