Download unsuccessful when I try download PDF file about react-native-blob-util HOT 2 CLOSED

let dirs = ReactNativeBlobUtil.fs.dirs;
 ReactNativeBlobUtil.config({
   path: dirs.DownloadDir + '/' + item.filename,
   addAndroidDownloads: {
     notification: true,
     title: ' ' + item.filename,
     description: 'Kliknij, aby otworzyć',
     mime: 'application/pdf',
     mediaScannable: true,
   },
 })
   .fetch(
     'GET',
     'API' + item.fileId,
     {
       Authorization: 'Bearer ' + accessTokenForProject?._W,
     },
   )
   .then((res) => {
     console.log('The file saved to ', res.path());
     Alert.alert('Projekt został pobrany', 'Projekt został pobrany');
   })
   // Something went wrong:
   .catch((errorMessage, statusCode) => {
     console.log(errorMessage);
   });
};