Display Shortcode Inside Plugin

I am trying to use a plugin that uses a shortcode to display custom posts inside of store locator plugin.

Essentially, when the client would load a location and place a shortcode like [display-posts post_type=”promo” posts_per_page=”1″ include_excerpt=”true” author=”telkins”].

However, anytime I add this to the description, I see [display-posts post_type=”promo” posts_per_page=”1″ include_excerpt=”true” author=”telkins”] instead of the shortcode. Is there a way to make a shortcode work inside a plugin?

I also tried <?php echo do_shortcode(‘[display-posts post_type=”promo” posts_per_page=”1″ include_excerpt=”true” author=”telkins”]’); ?> in the description and it does the same thing. Thanks to anyone who can help!