react-native-background-timer: undefined is not an object (evaluating 'RNBackgroundTimer.setTimeout'

I’m getting this error:

This is the source code:

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TouchableOpacity,
} from 'react-native';


import BackgroundTimer from 'react-native-background-timer';

class WorkerSampleApp extends Component {


  render() {

    return (
      <View style={styles.container}>
        <TouchableOpacity onPress={() => {

          // Start a timer that runs once after X milliseconds
          const timeoutId = BackgroundTimer.setTimeout(() => {
          	// this will be executed once after 10 seconds
          	// even when app is the the background
            	console.log('tac');

          }, 10000);

          // Cancel the timeout if necessary
          BackgroundTimer.clearTimeout(timeoutId);
          
        }}>
          <Text style={styles.welcome}>
            Send message
          </Text>
        </TouchableOpacity>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});


AppRegistry.registerComponent('WorkerSampleApp', () => WorkerSampleApp);

Please help…