diff --git a/packages/Webkul/BookingProduct/src/Helpers/AppointmentSlot.php b/packages/Webkul/BookingProduct/src/Helpers/AppointmentSlot.php
index 0b6fa3d1a..1edd39f15 100644
--- a/packages/Webkul/BookingProduct/src/Helpers/AppointmentSlot.php
+++ b/packages/Webkul/BookingProduct/src/Helpers/AppointmentSlot.php
@@ -9,7 +9,7 @@ class AppointmentSlot extends Booking
      * @param  \Webkul\BookingProduct\Contracts\BookingProduct  $bookingProduct
      * @return bool
      */
-    public function haveSufficientQuantity($qty, $bookingProduct)
+    public function haveSufficientQuantity(int $qty, $bookingProduct): bool
     {
         return true;
     }
diff --git a/packages/Webkul/BookingProduct/src/Type/Booking.php b/packages/Webkul/BookingProduct/src/Type/Booking.php
index ea913a07a..7c31354de 100644
--- a/packages/Webkul/BookingProduct/src/Type/Booking.php
+++ b/packages/Webkul/BookingProduct/src/Type/Booking.php
@@ -158,7 +158,7 @@ class Booking extends Virtual
      * @param  int  $qty
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         return true;
     }
diff --git a/packages/Webkul/Checkout/src/Cart.php b/packages/Webkul/Checkout/src/Cart.php
index fc3682eca..1d4613d36 100755
--- a/packages/Webkul/Checkout/src/Cart.php
+++ b/packages/Webkul/Checkout/src/Cart.php
@@ -795,7 +795,13 @@ class Cart
      */
     public function isItemsHaveSufficientQuantity(): bool
     {
-        foreach ($this->getCart()->items as $item) {
+        $cart = cart()->getCart();
+
+        if (! $cart) {
+            return false;
+        }
+
+        foreach ($cart->items as $item) {
             if (! $this->isItemHaveQuantity($item)) {
                 return false;
             }
diff --git a/packages/Webkul/Product/src/Models/Product.php b/packages/Webkul/Product/src/Models/Product.php
index 86acea5a1..f092e9e04 100755
--- a/packages/Webkul/Product/src/Models/Product.php
+++ b/packages/Webkul/Product/src/Models/Product.php
@@ -261,11 +261,11 @@ class Product extends Model implements ProductContract
     }
 
     /**
-     * @param integer $qty
+     * @param int $qty
      *
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         return $this->getTypeInstance()->haveSufficientQuantity($qty);
     }
diff --git a/packages/Webkul/Product/src/Models/ProductFlat.php b/packages/Webkul/Product/src/Models/ProductFlat.php
index 1e0517755..d2fb715aa 100644
--- a/packages/Webkul/Product/src/Models/ProductFlat.php
+++ b/packages/Webkul/Product/src/Models/ProductFlat.php
@@ -99,11 +99,11 @@ class ProductFlat extends Model implements ProductFlatContract
     }
 
     /**
-     * @param integer $qty
+     * @param int $qty
      *
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         return $this->product->haveSufficientQuantity($qty);
     }
diff --git a/packages/Webkul/Product/src/Type/AbstractType.php b/packages/Webkul/Product/src/Type/AbstractType.php
index 89425156f..1229c1b6c 100644
--- a/packages/Webkul/Product/src/Type/AbstractType.php
+++ b/packages/Webkul/Product/src/Type/AbstractType.php
@@ -350,7 +350,7 @@ abstract class AbstractType
      *
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         return $this->haveSufficientQuantity;
     }
@@ -555,7 +555,7 @@ abstract class AbstractType
         if ($haveSpecialPrice) {
             $this->product->special_price = min($this->product->special_price, $customerGroupPrice);
         } else {
-            $haveSpecialPrice = true; 
+            $haveSpecialPrice = true;
             $this->product->special_price = $customerGroupPrice;
         }
 
diff --git a/packages/Webkul/Product/src/Type/Bundle.php b/packages/Webkul/Product/src/Type/Bundle.php
index db7f283da..716d6fe74 100644
--- a/packages/Webkul/Product/src/Type/Bundle.php
+++ b/packages/Webkul/Product/src/Type/Bundle.php
@@ -685,7 +685,15 @@ class Bundle extends AbstractType
         }
 
         foreach ($item->children as $childItem) {
-            $childItem->product->getTypeInstance()->validateCartItem($childItem);
+            $childResult = $childItem->product->getTypeInstance()->validateCartItem($childItem);
+
+            if ($childResult->isItemInactive()) {
+                $result->itemIsInactive();
+            }
+
+            if ($childResult->isCartDirty()) {
+                $result->cartIsDirty();
+            }
 
             $price += $childItem->base_price * $childItem->quantity;
         }
diff --git a/packages/Webkul/Product/src/Type/Configurable.php b/packages/Webkul/Product/src/Type/Configurable.php
index bd44e44aa..727b72fe3 100644
--- a/packages/Webkul/Product/src/Type/Configurable.php
+++ b/packages/Webkul/Product/src/Type/Configurable.php
@@ -592,7 +592,7 @@ class Configurable extends AbstractType
      * @param  int  $qty
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         $backorders = core()->getConfigData('catalog.inventory.stock_options.backorders');
 
diff --git a/packages/Webkul/Product/src/Type/Simple.php b/packages/Webkul/Product/src/Type/Simple.php
index 2c0a90e5a..6b5659108 100644
--- a/packages/Webkul/Product/src/Type/Simple.php
+++ b/packages/Webkul/Product/src/Type/Simple.php
@@ -53,12 +53,12 @@ class Simple extends AbstractType
      * @param  int  $qty
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         $backorders = core()->getConfigData('catalog.inventory.stock_options.backorders');
 
         $backorders = ! is_null ($backorders) ? $backorders : false;
-  
+
         return $qty <= $this->totalQuantity() ? true : $backorders;
     }
 }
\ No newline at end of file
diff --git a/packages/Webkul/Product/src/Type/Virtual.php b/packages/Webkul/Product/src/Type/Virtual.php
index 6f19a8941..ede642cb0 100644
--- a/packages/Webkul/Product/src/Type/Virtual.php
+++ b/packages/Webkul/Product/src/Type/Virtual.php
@@ -13,7 +13,7 @@ class Virtual extends AbstractType
 
     /**
      * These blade files will be included in product edit page
-     * 
+     *
      * @var array
      */
     protected $additionalViews = [
@@ -60,7 +60,7 @@ class Virtual extends AbstractType
      * @param  int  $qty
      * @return bool
      */
-    public function haveSufficientQuantity($qty)
+    public function haveSufficientQuantity(int $qty): bool
     {
         return $qty <= $this->totalQuantity() ? true : false;
     }