diff --git a/includes/paytabs_payment_methods.php b/includes/paytabs_payment_methods.php
index 991fc87..8b25a1d 100755
--- a/includes/paytabs_payment_methods.php
+++ b/includes/paytabs_payment_methods.php
@@ -277,7 +277,7 @@ function payment_fields()
         $this->tokenization_script();
         $this->saved_payment_methods();
 
-        $has_subscription = WC_Subscriptions_Cart::cart_contains_subscription();
+        $has_subscription = class_exists('WC_Subscriptions_Cart') && WC_Subscriptions_Cart::cart_contains_subscription();
         if ($has_subscription) {
             echo wpautop('Will Save to Account');
         } else {
diff --git a/paytabs-woocommerce.php b/paytabs-woocommerce.php
index 7263359..4d59125 100644
--- a/paytabs-woocommerce.php
+++ b/paytabs-woocommerce.php
@@ -8,11 +8,11 @@
  * Plugin Name:   PayTabs - WooCommerce Payment Gateway
  * Plugin URI:    https://paytabs.com/
  * Description:   PayTabs is a <strong>3rd party payment gateway</strong>. Ideal payment solutions for your internet business.
- * Version:       4.5.4
+ * Version:       4.5.5
  * Requires PHP:  7.0
  * Author:        PayTabs
  * Author URI:    w.kammoun@paytabs.com
- * Revision Date: 22/September/2021
+ * Revision Date: 23/September/2021
  */
 
 if (!function_exists('add_action')) {
@@ -20,14 +20,14 @@
 }
 
 
-define('PAYTABS_PAYPAGE_VERSION', '4.5.4');
+define('PAYTABS_PAYPAGE_VERSION', '4.5.5');
 define('PAYTABS_PAYPAGE_DIR', plugin_dir_path(__FILE__));
 define('PAYTABS_PAYPAGE_ICONS_URL', plugins_url("icons/", __FILE__));
 define('PAYTABS_DEBUG_FILE', WP_CONTENT_DIR . "/debug_paytabs.log");
 define('PAYTABS_PAYPAGE_METHODS', [
+  'mada'       => 'WC_Gateway_Paytabs_Mada',
   'all'        => 'WC_Gateway_Paytabs_All',
   'creditcard' => 'WC_Gateway_Paytabs_Creditcard',
-  'mada'       => 'WC_Gateway_Paytabs_Mada',
   'stcpay'     => 'WC_Gateway_Paytabs_Stcpay',
   // 'stcpayqr' => 'WC_Gateway_Paytabs_Stcpayqr',
   'applepay'   => 'WC_Gateway_Paytabs_Applepay',