Player Problem on mobile - webview app

I created an app in webView and its player only works when we press the play button 3 times (one to play the video, then pause and then press it again to play the video)

the app link to demonstrate the error: link

But the error is only in the cell phone, it in the pc works perfectly. THE PAGE IS THAT: link

The webview code - MainActivity.java :

package com.creator.music;

import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Handler;
import android.view.View;
import android.view.Window;
import android.view.animation.TranslateAnimation;
import android.webkit.WebSettings;
import android.webkit.WebSettings.RenderPriority;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.Toast;


public class MainActivity extends Activity {

    // set your custom url here
    String url = " http://EU INSIRO A URL AKI";
    boolean doubleBackToExitPressedOnce = false;

    // if you want to show progress bar on splash screen
    Boolean showProgressOnSplashScreen = true;

    WebView mWebView;
    ProgressBar prgs;
    RelativeLayout splash, main_layout;


    @SuppressWarnings("deprecation")
    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        getWindow().setFeatureInt(Window.FEATURE_PROGRESS, Window.PROGRESS_VISIBILITY_ON);
        mWebView = (WebView) findViewById(R.id.wv);
        prgs = (ProgressBar) findViewById(R.id.progressBar);
        main_layout = (RelativeLayout) findViewById(R.id.main_layout);

        // splash screen View

        if (!showProgressOnSplashScreen)
            ((ProgressBar) findViewById(R.id.progressBarSplash)).setVisibility(View.GONE);
        splash = (RelativeLayout) findViewById(R.id.splash);

//      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
//
//          // get status bar height to push webview below that
//          int result = 0;
//          int resourceId = getResources().getIdentifier("status_bar_height",
//                  "dimen", "android");
//          if (resourceId > 0) {
//              result = getResources().getDimensionPixelSize(resourceId);
//          }
//
//          // set top padding to status bar
//          main_layout.setPadding(0, result, 0, 0);
//      }

        ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (activeNetwork != null && activeNetwork.isConnected()) {

            mWebView.loadUrl(url);
            Toast.makeText(this,"Recommended to use 3G/4G or Wifi ",Toast.LENGTH_LONG).show();
            // control javaScript and add html5 features
            mWebView.setFocusable(true);
            mWebView.setFocusableInTouchMode(true);
            mWebView.getSettings().setJavaScriptEnabled(true);
            mWebView.getSettings().setRenderPriority(RenderPriority.HIGH);
            mWebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
            mWebView.getSettings().setDomStorageEnabled(true);
            mWebView.getSettings().setAppCacheEnabled(true);
            mWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
            mWebView.getSettings().setDatabaseEnabled(true);
            mWebView.getSettings().setDatabasePath(
                    this.getFilesDir().getPath() + this.getPackageName()
                            + "/databases/");

            // this force use chromeWebClient
            mWebView.getSettings().setSupportMultipleWindows(true);


            mWebView.setWebViewClient(new WebViewClient() {

                @Override
                public boolean shouldOverrideUrlLoading(WebView view, String url) {
                    view.loadUrl(url);
                    return false;
                }

                @Override
                public void onPageStarted(WebView view, String url, Bitmap favicon) {
                    super.onPageStarted(view, url, favicon);
                    if (prgs.getVisibility() == View.GONE) {
                        prgs.setVisibility(View.VISIBLE);
                    }
                }

                @Override
                public void onLoadResource(WebView view, String url) {
                    super.onLoadResource(view, url);
                }

                @Override
                public void onPageFinished(WebView view, String url) {
                    super.onPageFinished(view, url);

                    if (prgs.getVisibility() == View.VISIBLE)
                        prgs.setVisibility(View.GONE);

                    // check if splash is still there, get it away!
                    if (splash.getVisibility() == View.VISIBLE)
                        splash.setVisibility(View.GONE);
                    slideToBottom(splash);

                }

            });

        }
        else{

            //Toast.makeText(this,"Your Device is not connected to Internet , Please Turn ON Data Services",Toast.LENGTH_LONG).show();

            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("Error");
            builder.setMessage("No Network Connection").setCancelable(false)
                    .setIcon(R.drawable.logo)
                    .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            finish();
                        }
                    });
            AlertDialog alert = builder.create();
            alert.show();

            Toast.makeText(this,"Your Device is not connected to Internet , Recommended to use 3G/4G or Wifi ",Toast.LENGTH_LONG).show();

        }

    }




    /**
     * To animate view slide out from top to bottom
     *
     *
     */
    void slideToBottom(View view) {
        TranslateAnimation animate = new TranslateAnimation(0, 0, 0,
                view.getHeight());
        animate.setDuration(2000);
        animate.setFillAfter(true);
        view.startAnimation(animate);
        view.setVisibility(View.GONE);
    }

    /*@Override
    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
            mWebView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }*/
    public void onBackPressed() {
        if (doubleBackToExitPressedOnce) {
            super.onBackPressed();
            return;
        }

        this.doubleBackToExitPressedOnce = true;
        Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();

        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {
                doubleBackToExitPressedOnce=false;
            }
        }, 2000);
    }

}

'