CRED check duplicates of current user by title

/* Validate CRED Forms check duplicates of current user by title */

add_filter('cred_form_validate','func_validate_title',10,2);
function func_validate_title($error_fields, $form_data){

    list($fields,$errors)=$error_fields;

    $forms_array =  array( 48 );

    if (in_array($form_data['id'], $forms_array)) {

        // get current user and title
        $current_user = wp_get_current_user();
        $title = $_POST['post_title'];

        // query to get the posts to compare
        $args = array( "author" => $current_user->ID, "post_type" => "add", "posts_per_page" => -1, "post_status" => array('publish', 'draft') );
        $query = get_posts( $args );

        if (count($query) > 0){

            //set error message for the title field if a post of the same title exists
            foreach ($query as $post) {
                if (strtolower($post->post_title) == strtolower($title)) {
                    $errors['post_title']='Найден дубликат в Ваших объявлениях. Проверьте Личный кабинет > Объявления > Неактивные.';
                    break;
                }
            }
        }
    }

    //return result
    return array($fields,$errors);
}