Downloading a Zip file from the internet "Android Studio"

I hope you are good and thank you for reading this. I started developing in Android Studio a few days ago, I am trying to download a zip file from the internet, after hours of researches I have not been able to do so. I am getting an error about the destination path of the file from the DownloadManager, you can see it in detail below.

Here is the code of the method that downloads the file:

//The method is called by a foreground service, I tried to call it inside the MainActivity, but it doesn't work either private static void DownloadFile(String fileUrl, Service service){ Log.w("Utility", "martinPrank, DownloadFile invoked from service, fileUrl: "+fileUrl); DownloadManager.Request request = new DownloadManager.Request(Uri.parse(fileUrl)); request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE | DownloadManager.Request.NETWORK_WIFI); request.setTitle("Download"); request.setDescription("Download file di sistema in corso..."); String[] urlWordArray = fileUrl.split("/"); String fileName = urlWordArray[urlWordArray.length-1]; request.allowScanningByMediaScanner(); request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE); request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName); DownloadManager downloadManager = (DownloadManager) service.getSystemService(Context.DOWNLOAD_SERVICE); downloadManager.enqueue(request); Log.w("Utility", "martinPrank, The download of the file should start!"); } 

And here is the Logcat of Android Studio:

2023-12-12 19:36:48.363 1998-2117 Utility com.patrickcreations.myapplication W martinPrank, DownloadFile invoked from service, fileUrl: https://www.trentinotrasporti.it/opendata/google_transit_urbano_tte.zip 2023-12-12 19:36:48.370 1463-1679 ActivityManager pid-1463 I Changes in 10074 10 to 3, 0 to 8 2023-12-12 19:36:48.425 5835-7230 DownloadManager pid-5835 W Path appears to be invalid: /storage/emulated/0/Download/google_transit_urbano_tte.zip 2023-12-12 19:36:48.477 1463-1679 ConnectivityManager pid-1463 D StackLog: [android.net.ConnectivityManager.sendRequestForNetwork(ConnectivityManager.java:4191)] [android.net.ConnectivityManager.registerDefaultNetworkCallbackForUid(ConnectivityManager.java:4755)] [com.android.server.job.controllers.ConnectivityController.registerPendingUidCallbacksLocked(ConnectivityController.java:856)] [com.android.server.job.controllers.ConnectivityController.maybeRegisterDefaultNetworkCallbackLocked(ConnectivityController.java:830)] [com.android.server.job.controllers.ConnectivityController.updateConstraintsSatisfied(ConnectivityController.java:1045)] [com.android.server.job.controllers.ConnectivityController.maybeStartTrackingJobLocked(ConnectivityController.java:263)] [com.android.server.job.JobSchedulerService.startTrackingJobLocked(JobSchedulerService.java:1754)] [com.android.server.job.JobSchedulerService.scheduleAsPackage(JobSchedulerService.java:1233)] [com.android.server.job.JobSchedulerService$JobSchedulerStub.scheduleAsPackage(JobSchedulerService.java:3167)] [android.app.job.IJobScheduler$Stub.onTransact(IJobScheduler.java:181)] 2023-12-12 19:36:48.477 1463-1679 ConnectivityService pid-1463 D requestNetwork for uid/pid:1000/1463 asUid: 11154 activeRequest: null callbackRequest: 4061 [NetworkRequest [ REQUEST id=4062, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VCN_MANAGED Uid: 11154 RequestorUid: 1000 RequestorPkg: android UnderlyingNetworks: Null] ]] callback flags: 0 order: 2147483647 2023-12-12 19:36:48.478 1463-1757 ConnectivityService pid-1463 D accepting network in place of null 2023-12-12 19:36:48.480 1998-2117 Utility com.patrickcreations.myapplication W martinPrank, The download of the file should start! 

UPDATE: I saw a new error from the Logcat:

2023-12-12 19:36:48.726 5835-2154 DownloadManager pid-5835 W [1414] Stop requested with status HTTP_DATA_ERROR: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found. 2023-12-12 19:36:48.727 5835-2154 DownloadManager pid-5835 D [1414] Finished with status WAITING_TO_RETRY 2023-12-12 19:36:48.727 5835-2154 DownloadManager pid-5835 V MIME Type = null 

The problem is actually the Trust anchor of the website, I tried to download a pdf from another website and it works!

So the problem is the server where I was trying to get the zip from right?