Saat edit order muncul "error Undefined". Cara mengatasinya adalah:


Buka upload/admin/controller/sale/order.php

Kemudian cari

$data['store_url'] = $this->request->server['HTTPS'] ? str_replace("http", "https", $order_info['store_url']) : $order_info['store_url'];


ganti dengan

$data['store_url'] = $this->request->server['HTTPS'] ? HTTPS_CATALOG : HTTP_CATALOG;


Selesai dan masalah teratasi!!