Fatal Exception : Asyntask#5 Runtime Exception Android

This code sometimes works and Unfortunately stopped working. I am not changing anything(UI) in background. gives follwing error. 01-28 06:42:53.060: E/AndroidRuntime(4993): FATAL

Solution 1:

     @Override
    protected void onPostExecute(String result) {
    // super.onPostExecute(result);

       Log.e("OnPostExecute",result);
       try {
                dialog.dismiss();
                dialog = null;
            } catch (Exception e) {
                e.getMessage();
            }


    }

try with this hop its helpful to you.