PIPRES-488: added additional validation then adding the product which…

… causes incorrect behavior on some themes

mollie.php

@@ -32,6 +32,7 @@
 use Mollie\Subscription\Install\DatabaseTableInstaller;
 use Mollie\Subscription\Install\HookInstaller;
 use Mollie\Subscription\Install\Installer;
+use Mollie\Subscription\Config\Config as SubscriptionConfig;
 use Mollie\Subscription\Provider\SubscriptionProductProvider;
 use Mollie\Subscription\Repository\LanguageRepository as LanguageAdapter;
 use Mollie\Subscription\Repository\RecurringOrderRepositoryInterface;
@@ -1124,6 +1125,19 @@ public function hookActionAjaxDieCartControllerDisplayAjaxUpdateBefore(array $pa
             return;
         }
 
+        $isSubscriptionEnabled = Configuration::get(Config::MOLLIE_SUBSCRIPTION_ENABLED);
+
+        $groups = Tools::getValue('group');
+        if (!(bool)$isSubscriptionEnabled || !is_array($groups)) {
+            return;
+        }
+
+        $subscriptionGroup = Configuration::get(SubscriptionConfig::SUBSCRIPTION_ATTRIBUTE_GROUP);
+
+        if (!in_array($subscriptionGroup, $groups, true)) {
+            return;
+        }
+
         $response = json_decode($params['value'], true);
 
         $hasError = $response['hasError'] ?? false;