Facebook fro WordPress iFrame problems

Hi

I have installed the Facebook for WordPress plugin and the iFrame breaks the page on my post site.
https://www.asksteve.co.za/?p=819

I have tried to edit the width in the settings, but the changes never appear on the site.

I have tried the solutions here but still no luck.
https://www.wpresponsive.com/how-to-make-facebook-comments-responsive-wordpress

Can anyone help?

Thanks in advance!