Application stopped on android

If I integrate the plugova plugova-plugin-tts into my application and I deploy on android it tells me the application has stopped

Sorry what?

Please provide a link to the plugin you are installing and tell us what you did to install and integrate it.

in example my code`

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { TextToSpeech } from '@ionic-native/text-to-speech';

  selector: 'page-home',
  templateUrl: 'home.html'
export class HomePage {
  constructor(public navCtrl: NavController,private tts: TextToSpeech) {

async saytext(){
  await this.tts.speak('Hello World'+this.text)
  .then(() => console.log('Success'))
  .catch((reason: any) => console.log(reason));