allow drafts to be included in stats

I want to add the drafts to the counter, but I couldn’t do it, although I found this code below:

add_filter( ‘ppc_get_settings’, ‘ppc_add_draft_status_settings’, 10 );
function ppc_add_draft_status_settings( $settings ) {
$settings[‘counting_allowed_post_statuses’][‘draft’] = 1;
return $settings;
}

add_filter( ‘ppc_get_requested_posts_args’, ‘ppc_draft_status_wp_query’, 10 );
function ppc_draft_status_wp_query ( $status ) {
$status[‘post_status’][] = ‘draft’;
return $status;
}

I tried to add to ppc_general_functions_class.php, but it broke the plugin. can you please tell me how should I add it and to which file?