Flask API requests returning old Errors

# - Static template for response json -
response_body = {
                        "domain": {
                            "datatype": {
                                "data": {
                                }
                            }
                        }
                    }

response_body['domain']['datatype'].update(error_body)

    response_body['domain']['datatype']['data'][get_data_entity_kvm(response_obj)[0]] = get_data_entity_kvm(response_obj)[1]

def get_response_body():
    return {
        "domain": {
            "datatype": {
                "data": {
                }
            }
        }
    }

def set_error_jsonresponse(message="An unexpected error has occurred.",errortype="InternalError"):
    response_body = get_response_body()
    # do something with that...