Audio sttop playing after while with expo-av

i want to play a music at background of my app using react-native expo. so i used expo-av components.

after running the app, music plays correctly but after while,unreasonable its stops playing just before the music ends!!

Note: after running program, i receive this Warning message:

Setting a timer for a long period of time, i.e. multiple minutes, is a performance and correctness issue on Android as it keeps the timer module awake, and timers can only be called when the app is in the foreground.

here is my codes:

import React, { Component } from 'react'
import { Audio } from 'expo-av'

handlePlaySound = async fileAdd => {

    const soundObj = new Audio.Sound();

    try{
        await soundObj.loadAsync(fielAdd);
        await soundObj.playAsync;
    }catch(error){
        console.log(error);
    }
}

export default function HomeScreen() {
    let source = require('./assets/sounds/bg.mp3');
    this.handlePlaySound(source);

    return (.....Ui Components
    );
  }