Tennis club theme fix, add the code starting on line 4 to a child theme's functions.php file, or into a site functions plugin.

functions.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

if ( !function_exists( 'tennisclub_query_posts_where' ) ) {
  function tennisclub_query_posts_where($where, $query) { 
    global $wpdb; 
    if (is_admin() || $query->is_attachment) return $where;
    if (tennisclub_strpos($where, 'post_status')===false && (!isset($_REQUEST['preview']) || $_REQUEST['preview']!='true') && (!isset($_REQUEST['vc_editable']) || $_REQUEST['vc_editable']!='true')) {
      if (current_user_can('read_private_pages') && current_user_can('read_private_posts'))
        $where .= " AND ({$wpdb->posts}.post_status='publish' OR {$wpdb->posts}.post_status='private' OR {$wpdb->posts}.post_status='sold_out')";
      else
        $where .= " AND ({$wpdb->posts}.post_status='publish' OR {$wpdb->posts}.post_status='sold_out')";
    }
    return $where;
  }  
}