Unable to ORDER BY numbers

I am using WPTables to display data in a mySQL database, it all works fine and without issues, the problem is it sorts oldest first, I need to sort by newest first, here is an example:

http://itteamdev.co.uk/

class WPTables {
const URL_PLUGIN_PAGE = "https://wordpress.org/plugins/wptables/";
const URL_SUPPORT = "https://wordpress.org/support/plugin/wptables";
const URL_FACEBOOK = "https://www.facebook.com/wptables/";
const URL_TWITTER = "https://twitter.com/wptables";

protected $loader;
protected $plugin_name;
protected $version;

private static $_instance = null;

private function __construct() {
    $this->plugin_name = 'wptables';
    $this->version = '1.3.9';

    $this->load_dependencies();
    $this->set_locale();
    $this->define_admin_hooks();
    $this->define_public_hooks();
}

static public function get_instance() {
    if(is_null(self::$_instance))
    {
        self::$_instance = new self();
    }
    return self::$_instance;
}

// public function get_version() {
//  return $this->version;
// }

private function load_dependencies() {
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-wptables-view.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/partials/view-wptables-list-tables.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/partials/view-wptables-add-new-table.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/partials/view-wptables-edit-table.php';
    // data parsers
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-parser.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-csv-parser.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-json-parser.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-mysql-helper.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-mysql-parser.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-mysql-loader.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/data/class-wptables-manual-data.php';
    // data exports
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/export/class-wptables-csv-export.php';
    // generic
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-wptables-loader.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-wptables-i18n.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/class-wptables-admin.php';
    require_once plugin_dir_path( dirname( __FILE__ ) ) . 'public/class-wptables-public.php';
    $this->loader = new WPTables_Loader();
}

private function set_locale() {
    $plugin_i18n = new WPTables_i18n();
    $this->loader->add_action( 'plugins_loaded', $plugin_i18n, 'load_plugin_textdomain' );
}

private function define_admin_hooks() {
    $plugin_admin = new WPTables_Admin( $this->get_plugin_name(), $this->get_version() );
    $this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_styles' );
    $this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts' );
    $this->loader->add_action( 'admin_menu', $plugin_admin, 'add_menu' );
    $this->loader->add_action( 'admin_post_wpt_add_new_table', $plugin_admin, 'action_add_new_table' );
    $this->loader->add_action( 'admin_post_wpt_update_table', $plugin_admin, 'action_update_table' );
    $this->loader->add_action( 'admin_post_wpt_delete_table', $plugin_admin, 'action_delete_table');
    $this->loader->add_action( 'admin_post_wpt_clone_table', $plugin_admin, 'action_clone_table');
    $this->loader->add_action( 'admin_post_wpt_export_csv', $plugin_admin, 'action_export_csv' );
    $this->loader->add_action( 'admin_post_wpt_add_table_field', $plugin_admin, 'action_add_table_field' );
    $this->loader->add_action( 'admin_post_wpt_remove_table_field', $plugin_admin, 'action_remove_table_field' );
    $this->loader->add_action( 'admin_post_wpt_hide_update_message', $plugin_admin, 'action_hide_update_message' );
    $this->loader->add_filter( 'mce_buttons', $plugin_admin, 'filter_mce_buttons' );
    $this->loader->add_filter( 'mce_external_plugins', $plugin_admin, 'filter_mce_external_plugins' );
    $this->loader->add_action( 'wp_ajax_wpt_tinymce_get_tables', $plugin_admin, 'ajax_tinymce_get_tables' );
    $this->loader->add_action( 'in_plugin_update_message-wptables/wptables.php', $plugin_admin, 'plugin_update_message' );
}

private function define_public_hooks() {
    $plugin_public = new WPTables_Public( $this->get_plugin_name(), $this->get_version() );
    $this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_styles' );
    $this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_scripts' );
    $this->loader->add_action( 'init', $plugin_public, 'register_shortcodes');
    $this->loader->add_action( 'wp_ajax_wpt_load_data', $plugin_public, 'ajax_load_data' );
    $this->loader->add_action( 'wp_ajax_nopriv_wpt_load_data', $plugin_public, 'ajax_load_data');
}

public function run() {
    $this->loader->run();
}

public function get_plugin_name() {
    return $this->plugin_name;
}

public function get_loader() {
    return $this->loader;
}

public function get_version() {
    return $this->version;
}

private static function nonce($params) {
    if (isset($params['action']) && $params['action'] == 'wpt_delete_table') {
        return 'wpt-delete-table-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_export_csv') {
        return 'wpt-export-csv-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_load_data') {
        return 'wpt-load-data-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_add_table_field') {
        return 'wpt-add-table-field-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_remove_table_field') {
        return 'wpt-remove-table-field-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_clone_table') {
        return 'wpt-clone-table-'.$params['table'];
    } elseif (isset($params['action']) && $params['action'] == 'wpt_hide_update_message') {
        return 'wpt-hide-update-message';
    }
}

public static function url( array $params = array(), $add_nonce = false, $target = '') {
    if (empty($target)) {
        $target = 'admin.php';
    } 
    $url = add_query_arg( $params, admin_url( $target ) );
    if ( $add_nonce ) {
        $url = wp_nonce_url( $url, WPTables::nonce($params) );
    }
    return $url;
}

public static function redirect( array $params = array(), $add_nonce = false ) {
    $redirect = self::url( $params );
    wp_redirect( $redirect );
    exit;
}

public static function shortcode_table($id) {
    return "[wp_table id={$id}/]";
}

public static function json_encode($data) {
    return json_encode($data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_HEX_APOS);
}

public static function get_dbs() {
    global $wpdb;
    $dbs = $wpdb->get_results("SHOW DATABASES", ARRAY_N);
    $output = array();
    foreach ($dbs as $db) {
        $db_name = $db[0];
        $tables = $wpdb->get_results("SHOW TABLES FROM $db_name LIKE '%'", ARRAY_N);
        $output[$db_name] = array();
echo "$table n";
        foreach ($tables as $table) {
            $output[$db_name][] = $table[0];
        }
    }
    return $output;
}

}

That is the only code I can find that may have any relation to sorting, could anyone please advise on how to sort by the order number for example.

Thanks 🙂