Hook wppizza_on_order_executed is not working any more io Versie: 3.0.beta.170420.1 please help me here

add_action( ‘wppizza_on_order_executed’,’my_function’,null, 2 );
public function my_function($orderId, $orderTable) {
$getOrderDetails = $wpdb->get_row(“SELECT wp_user_id,customer_ini, customer_details ,order_ini, order_details,initiator FROM ” .$wpdb->prefix . $orderTable . ” WHERE id=”.$order_id.” “);
}

Thanks in advance.