diff --git a/android/src/main/kotlin/com/dooboolab/flutterinapppurchase/AndroidInappPurchasePlugin.kt b/android/src/main/kotlin/com/dooboolab/flutterinapppurchase/AndroidInappPurchasePlugin.kt
index bdd71936..2dca5028 100644
--- a/android/src/main/kotlin/com/dooboolab/flutterinapppurchase/AndroidInappPurchasePlugin.kt
+++ b/android/src/main/kotlin/com/dooboolab/flutterinapppurchase/AndroidInappPurchasePlugin.kt
@@ -511,15 +511,14 @@ class AndroidInappPurchasePlugin internal constructor() : MethodCallHandler,
             if (offerTokenIndex != null) {
                 offerToken = selectedProductDetails.subscriptionOfferDetails?.get(offerTokenIndex)?.offerToken
             }
-            if (offerToken == null) {
+            if (offerToken == null && selectedProductDetails.subscriptionOfferDetails != null) {
                 offerToken = selectedProductDetails.subscriptionOfferDetails!![0].offerToken
             }
 
-            val productDetailsParamsList =
-            listOf(ProductDetailsParams.newBuilder()
-                .setProductDetails(selectedProductDetails)
-                .setOfferToken(offerToken)
-                .build())
+            val details = ProductDetailsParams.newBuilder().setProductDetails(selectedProductDetails)
+            if (offerToken != null)
+                details.setOfferToken(offerToken)
+            val productDetailsParamsList = listOf(details.build())
             builder.setProductDetailsParamsList(productDetailsParamsList)
 
             val params = SubscriptionUpdateParams.newBuilder()
diff --git a/lib/modules.dart b/lib/modules.dart
index a577a082..5096c968 100644
--- a/lib/modules.dart
+++ b/lib/modules.dart
@@ -117,7 +117,6 @@ class IAPItem {
         'title: $title, '
         'description: $description, '
         'introductoryPrice: $introductoryPrice, '
-        'introductoryPricePaymentModeIOS: $introductoryPrice, '
         'subscriptionPeriodNumberIOS: $subscriptionPeriodNumberIOS, '
         'subscriptionPeriodUnitIOS: $subscriptionPeriodUnitIOS, '
         'introductoryPricePaymentModeIOS: $introductoryPricePaymentModeIOS, '