If your page shows the text [hr-property-list-filter] instead of a search box, the shortcode is not rendering on your site.
Why this happens. [hr-property-list-filter] is not a shortcode built into the HomeRunner plugin. It is a standalone code snippet that has to be installed separately on a site. On a site without that snippet, WordPress prints the tag as plain text.
What you can do. The supported replacement is the Property Finder tool in the HomeRunner Conversion Kit. It renders the same "Search by Rental Name" box and takes the visitor straight to the listing they pick.