Android Link Ошибка веб-страницы

Question

Когда я переключаю свой андроид в режим полета, AVD отправляет мне диалоговое окно принудительного закрытия, отладьте мою проблему в моем коде, пожалуйста:

import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.webkit.WebView;
import android.widget.Toast;
//Set Activity Irancell:
public class Irancell extends Activity {
    final String offlineMessageHtml = "DEFINE THIS";
    private Context c;
    private boolean isConnected = true;
    WebView Irancell_Charge;

    //Start App Code at here:
    @Override
    // Set iCicle Void:
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        c=this;
        //check for connectivity:
        ConnectivityManager connectivityManager = (ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = connectivityManager.getActiveNetworkInfo();
        if (ni.getState() != NetworkInfo.State.CONNECTED) {
            // record the fact that there is not connection
            isConnected = false;
        }
        //Text Label:
        Toast.makeText(this, "MTN Irancell Recharge Cards...", Toast.LENGTH_LONG).show();
        //Load Irancel Buy Creadit Page:
        Irancell_Charge=new WebView(this);
        setContentView(Irancell_Charge);
        Irancell_Charge.setNetworkAvailable(isConnected);
        Irancell_Charge.getSettings().setJavaScriptEnabled(true);
        Irancell_Charge.loadUrl("http://www.echarge.ir/Templates/irancellshop/m/");
    }

    public boolean shouldOverrideUrlLoading(WebView view, String url){
        if (isConnected) {
            return false;
        } else {
            view.loadData(offlineMessageHtml, "text/html", "utf-8");
            return true;
        }        
    }
}

Спасибо