Pro version

If you use Elementor and the premium version you can select any element to protect on the page. Or you can use the inline shortcode https://pramadillo.com/documentation/shortcodes-for-woocommerce-pay-per-post/#inline-shortcode

The problem is that the agent contact information appears automatically as a theme option. I need to hide some elements that are not created with elementor. Or at least, I need to hide an entire age. Somehow, the plugin hides only the description(as in the listing page example: only the description is hidden. The other elements that appears from the theme are not hidden, as agent info, and details about the listing)

For that you would need a developer to help you out and modifiy those theme templates and use the Template Tags as located https://pramadillo.com/documentation/template-functions/

Then you can simply wrap the sections you want to hide with the functions and it will interact with the theme.