I am experiencing issues with in-app purchases while using react-native-iap in an Expo React Native (Managed Workflow) project with TypeScript.

Issue Summary

1. Development Mode (Simulator & Physical Device):

   -When the app initializes with withIAPContext, I immediately get this error: E_IAP_NOT_AVAILABLE

   -This prevents the purchase flow from starting and subscriptions from loading.

2. TestFlight (Production Environment):

   -The SubscriptionsIOS.tsx component does not render at all.

   -No visible errors appear, but in-app purchases do not load, leaving a blank screen.

Steps to Reproduce

1. Open the app on an iOS simulator or physical device.

2. Navigate to the SubscriptionsIOS.tsx component where in-app purchases should be executed.

3. The error E_IAP_NOT_AVAILABLE appears immediately.

4. When testing in TestFlight, the app does not crash, but nothing renders in the SubscriptionsIOS.tsx component.

Expected Behavior

1. The app should successfully initialize in-app purchases and display available subscriptions.

2. The UI should render correctly in TestFlight.

What I Have Tried So Far

✅ Enabled In-App Purchases in Apple Developer and App Store Connect.

✅ Ensured the bundle identifier matches the one registered in App Store Connect.

✅ Tested with a Sandbox account.

✅ Verified my react-native-iap implementation.

✅ Properly restored transactions.

Project Information

Expo SDK: ~51.0.20

react-native-iap version: ~12.16.2

React Native version: 0.74.3

I would appreciate any help on how to resolve this issue or any debugging tips. Thank you in advance!