Giri

Can you give me the site url?

I think thats a problem with your font. That font contains non english characters. So for some reason double s converted to non english character. https://www.google.com/fonts/specimen/PT+Sans

You should report that to font author.

Not sure, whats wrong with your computer. When i click activate, whoop theme activated without any error.

Check your website now.

Thanks

Listing detail page is generated using hooks.

This is the detail page templates that contain hooks.

wp-content/plugins/geodirectory/geodirectory-templates/listing-detail.php

Place this code in your child theme.

function whoop_change_sidebar_content_order() {
    return array('geodir_social_sharing_buttons',
        'geodir_share_this_button',
        'geodir_detail_page_google_analytics',
        'geodir_detail_page_review_rating',
        'geodir_detail_page_more_info',
        'geodir_edit_post_link'
    );
}
add_filter('geodir_detail_page_sidebar_content', 'whoop_change_sidebar_content_order');

You have to use this action hook

geodir_detail_before_main_content

Something like this

function my_hero_picture() {
   // your function code here
}
add_action('geodir_detail_before_main_content', 'my_hero_picture', 1);