Send camera photo to Firebase Storage

Question

I need to make mine App open the camera, take a photo and when returning to the Fragment previous and click on the "Upload" button, send this photo to the Firebase Storage.

I managed to do with images that are already saved on the phone, but with the camera does not work, 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);
}

Method onStartResultActivity:

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 scribes 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);
}

Procedure for uploading images:

   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();
        }
    }