Android DownloadManager illegalstateexception unable to create directory

I'm making android app which is using DownloadManager. I want to download file into folder which I made. But this sources don't operate. And happen IllegalstateException. What can I do??

urlToDownload = Uri.parse(URL);
List<String> pathSegments = urlToDownload.getPathSegments();
request = new DownloadManager.Request(urlToDownload);
request.setTitle(Titlename);
request.setDescription("MCPE STORE");
request.setDestinationInExternalPublicDir(
                   Environment.getExternalStorageDirectory().getAbsolutePath() + 
                   "/MCPE STORE", pathSegments.get(pathSegments.size()-1));

Environment.getExternalStoragePublicDirectory(
                   Environment.getExternalStorageDirectory().getAbsolutePath() + 
                   "/MCPE STORE").mkdir();
latestId = downloadManager.enqueue(request);