first upload all files

Modules/Cart/NullCartCoupon.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Modules\Cart;
+
+use Modules\Support\Money;
+
+class NullCartCoupon
+{
+    public function id()
+    {
+        //
+    }
+
+    public function code()
+    {
+        //
+    }
+
+    public function isFreeShipping()
+    {
+        return false;
+    }
+
+    public function usageLimitReached()
+    {
+        return false;
+    }
+
+    public function didNotSpendTheRequiredAmount()
+    {
+        return false;
+    }
+
+    public function spentMoreThanMaximumAmount()
+    {
+        return false;
+    }
+
+    public function usedOnce()
+    {
+        //
+    }
+
+    public function value()
+    {
+        return Money::inDefaultCurrency(0);
+    }
+
+    public function __get($attribute)
+    {
+        //
+    }
+}