React-native sms retriever not working as expected

Question

I am working on a React Native app - sms-retriever API to read SMS automatically to retrieve OTP from message Following this article: https://github.com/Bruno-Furtado/react-native-sms-retriever

_onSmsListenerPressed = async () => {
  alert('waiting for SMS')
  try {
    const registered = await SmsRetriever.startSmsRetriever();
    if (registered) {
      SmsRetriever.addSmsListener(event => {
        console.log(event.message);
        alert(event.message);
        this.setState({message:event.message});
        SmsRetriever.removeSmsListener();
      }); 
    }
  } catch (error) {
    console.log(JSON.stringify(error));
  }
};

I'm running on an Android device When I press the button which calls the above message, it should start listening But when an SMS is received, it doesn't alert with SMS message What is wrong with the code?