[display-posts] not working

I’m sorry but I don’t see where the shortcode is being used on that page.

If you are getting no results, it could be a conflict with your theme or another plugin. I recommend installing the Health Check plugin, then go to Plugins and click “Troubleshoot” underneath Display Posts. This will disable all other plugins just for you. You can then test to see if Display Posts is working. You can enable plugins one-by-one to identify which plugin is causing the conflict.