Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
______ test_register_with_activation_keys_with_wrong_key_among_good_ones _______

any_candlepin = <pytest_client_tools.candlepin.Candlepin object at 0x7f48cf6a52b0>
subman = <pytest_client_tools.subscription_manager.SubscriptionManager object at 0x7f48cf5ca2d0>
test_config = <pytest_client_tools.test_config.TestConfig object at 0x7f48cf6a5280>

    def test_register_with_activation_keys_with_wrong_key_among_good_ones(any_candlepin, subman, test_config):
        """
        https://www.candlepinproject.org/docs/subscription-manager/dbus_objects.html#methods-6
    
        Given a DBus method RegisterWithActivationKeys is used to register a system
        When an invalid activation key appears in a list of valid activation keys
        Then an application registers a system using all valid activation keys
        and the application returns a list of activation keys that was used for registration.
        """
        valid_act_keys = test_config.get("candlepin", "activation_keys") or []
        act_keys = valid_act_keys + ["wrong-act-key"]
        org_to_use = test_config.get("candlepin", "org")
    
        proxy = RHSM.get_proxy(
            object_path=RHSM_REGISTER_SERVER.object_path, interface_name=RHSM_REGISTER_SERVER.interface_name
        )
        with RHSMPrivateBus(proxy) as private_bus:
            private_proxy = private_bus.get_proxy(
                service_name=RHSM.service_name,
                object_path=RHSM_REGISTER.object_path,
                interface_name=RHSM_REGISTER.interface_name,
            )
>           response = json.loads(private_proxy.RegisterWithActivationKeys(org_to_use, act_keys, {}, {}, locale))

integration-tests/test_register_with_activation_keys.py:102: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
venv/lib64/python3.12/site-packages/dasbus/client/handler.py:450: in _call_method
    return self._get_method_reply(
venv/lib64/python3.12/site-packages/dasbus/client/handler.py:483: in _get_method_reply
    return self._handle_method_error(error)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <dasbus.client.handler.ClientObjectHandler object at 0x7f48cf627b80>
error = GLib.Error('GDBus.Error:com.redhat.RHSM1.Error: {"exception": "Disconnected", "severity": "error", "message": ""}', 'g-io-error-quark', 36)

    def _handle_method_error(self, error):
        """Handle an error of a DBus call.
    
        If the call returned a DBus error, it will be mapped
        to a Python exception based on the rules defined in
        the available error mapper. It should be a subclass
        of DBusError.
    
        :param error: an exception raised during the call
        :raise Exception: if the call unexpectedly failed
        :raise TimeoutError: if the DBus call timed out
        :raise DBusError: if the call returned a DBus error
        """
        if self._client.is_remote_error(error):
            # Handle a remote DBus error.
            name = self._client.get_remote_error_name(error)
            cls = self._error_mapper.get_exception_type(name)
            message = self._client.get_remote_error_message(error)
    
            # Create a new exception.
            exception = cls(message)
            exception.dbus_name = name
    
            # Raise a new instance of the exception class.
>           raise exception from None
E           dasbus.error.DBusError: {"exception": "Disconnected", "severity": "error", "message": ""}

venv/lib64/python3.12/site-packages/dasbus/client/handler.py:509: DBusError
------------------------------ Captured log setup ------------------------------
DEBUG    pytest_client_tools:util.py:135 running ['config', '--logging.default_log_level=DEBUG'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['config', '--logging.default_log_level=DEBUG'], returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running ['config', '--server.hostname=localhost', '--server.port=8443', '--server.prefix=/candlepin', '--server.insecure=1'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['config', '--server.hostname=localhost', '--server.port=8443', '--server.prefix=/candlepin', '--server.insecure=1'], returncode=0, stdout='', stderr='')
------------------------------ Captured log call -------------------------------
DEBUG    conftest:conftest.py:27 subscription: starting RHSM private DBus session
DEBUG    conftest:conftest.py:30 subscription: RHSM private DBus session has been started
INFO     conftest:conftest.py:44 Connecting to the RHSM private DBus session.
DEBUG    conftest:conftest.py:34 subscription: shutting down the RHSM private DBus session
DEBUG    dasbus.connection:connection.py:311 Disconnecting from the bus.
DEBUG    conftest:conftest.py:38 subscription: RHSM private DBus session has been shutdown
---------------------------- Captured log teardown -----------------------------
DEBUG    pytest_client_tools:util.py:135 running ['unregister'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['unregister'], returncode=0, stdout='Unregistering from: localhost:8443/candlepin\nSystem has been unregistered.\n', stderr='')
DEBUG    pytest_client_tools:util.py:135 running (['systemctl', 'stop', 'rhsmcertd.service'],) with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['systemctl', 'stop', 'rhsmcertd.service'], returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running (['pkill', '-e', '-x', 'rhsmcertd'],) with options {'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['pkill', '-e', '-x', 'rhsmcertd'], returncode=1, stdout='', stderr='')
- generated xml file: /var/ARTIFACTS/work-plansi7dbn4vq/systemtest/plans/discover/default-0/tests/junit.xml -


Answer: an error risen from DBus service