Send camera photo to Firebase Storage

I need to have my App open the camera, take a picture and go back to the previous Fragment and click the Upload button, send that photo to the Firebase Storage .

I was able to do with images that are already saved in the phone, but with the camera not working, the following error is displayed:

  

An unknownerror occurred, please check the HTTP result code and inner exception for server response

But the shipping procedure is the same!

Procedure to open the camera on onClick :

public void abrirCamera() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(intent, PICK_IMAGE_CAMERA);
}

onStartResultActivity method :

case PICK_IMAGE_CAMERA:
    if (resultCode == RESULT_OK && data != null) {
        Bitmap bitmap = (Bitmap) data.getExtras().get("data");
        filePath = escreveImagens(bitmap);
        foto.setImageBitmap(bitmap);
    }
    break;

Function writes Images used above:

public Uri escreveImagens(Bitmap bmp) {
        try {
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);

            byte[] bytes = stream.toByteArray();

            FileOutputStream pos = new FileOutputStream(nomeArquivo);
            pos.write(bytes);
            pos.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
        return Uri.parse(nomeArquivo);
}

Image upload procedure:

   private void uploadImagem() {
        if (filePath != null) {
            final ProgressDialog progressDialog = new ProgressDialog(getContext());
            progressDialog.setTitle("Enviando...");
            progressDialog.show();
            StorageReference reference = storageReference.child("Fotos/" + alunoLogado.getMatricula());

            reference.putFile(filePath).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                    progressDialog.dismiss();
                    Toast.makeText(getContext(), "Foto enviada!", Toast.LENGTH_SHORT).show();
                }
            }).addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    progressDialog.dismiss();
                    Toast.makeText(getContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
                }
            }).addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
                    double progress = (100.0 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();
                    progressDialog.setMessage((((int) progress) + "% enviados..."));
                }
            });
        } else {
            Toast.makeText(getContext(), "Ocorreu um erro. Tente novamente!", Toast.LENGTH_SHORT).show();
        }
    }