Error “Cannot access protected property FeedWordPressPostsPage” On Admin

Full error is:

Fatal error: Uncaught Error: Cannot access protected property FeedWordPressPostsPage::$context in /wp-content/plugins/faf/feedwordpress_advanced_filters.php:464 Stack trace: #0 /wp-content/plugins/faf/feedwordpress_advanced_filters.php(622): FeedWordPressAdvancedFilters->get_page_type(Object(FeedWordPressPostsPage)) #1 /wp-content/plugins/faf/feedwordpress_advanced_filters.php(447): FeedWordPressAdvancedFilters->save_filter_options(Object(FeedWordPressPostsPage), Array) #2 /wp-includes/class-wp-hook.php(298): FeedWordPressAdvancedFilters->posts_save(Array, Object(FeedWordPressPostsPage)) #3 /wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters('', Array) #4 /wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /wp-content/plugins in /wp-content/plugins/faf/feedwordpress_advanced_filters.php on line 464

Line 464 is “switch($page->context)” inside this:

    /** 
    * Determines the current page type and context  
    *
    * In Feedwordpress there is a difference between the multiple pages ( context ) and hence settings.
    * This function is the general way to determine where we are. 
    * 
    * @param Object $page Page Feedwordpress Page Object
    * @return String page_type The name of the current 'context'
    * 
    * @since 0.1
    */
	protected function get_page_type($page)
	{

  	        switch($page->context)
  		{
			case "feedwordpresscategories": 
			case "feedwordpresscategoriesforfeed": 
				$page_type = "categories";
			 break;
			 case "feedwordpresspostspage": 
			 case "feedwordpresspostspageforfeed":
				$page_type = "posts"; 
			 break;
		}
		return $page_type; 
	}

I’ve been checking info on the web and it seems the solution is to use a reflection class, but no idea how to change that here. I will keep trying. If anyone can help, please do. Thanks!