i can fetch but not purchase (Android)

I got following error when trying to purchase:
{"adaptyCode": "unknown", "code": 55215026, "localizedDescription": "Attempt to invoke virtual method 'java.lang.String android.content.Intent.getStringExtra(java.lang.String)' on a null object reference"}

I can log my paywalls and products without any problem. Only the purchase is not working.
I am using react-native. We used to work with the react-native-iap to handle purchases. But I uninstalled it now so it should not have any conflicts with the android billing library