WARN  Chat Model Prompter  4:133      Traceback (most recent call last):
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_transports\default.py", line 101, in map_httpcore_exceptions
    yield
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_transports\default.py", line 250, in handle_request
    resp = self._pool.handle_request(req)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\connection_pool.py", line 256, in handle_request
    raise exc from None
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\connection_pool.py", line 236, in handle_request
    response = connection.handle_request(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\http_proxy.py", line 288, in handle_request
    connect_response = self._connection.handle_request(
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\connection.py", line 101, in handle_request
    raise exc
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\connection.py", line 78, in handle_request
    stream = self._connect(request)
             ^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_sync\connection.py", line 124, in _connect
    stream = self._network_backend.connect_tcp(**kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_backends\sync.py", line 207, in connect_tcp
    with map_exceptions(exc_map):
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\contextlib.py", line 158, in __exit__
    self.gen.throw(typ, value, traceback)
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpcore\_exceptions.py", line 14, in map_exceptions
    raise to_exc(exc) from exc
httpcore.ConnectError: [WinError 10061] No connection could be made because the target machine actively refused it

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 996, in _request
    response = self._client.send(
               ^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_client.py", line 914, in send
    response = self._send_handling_auth(
               ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_client.py", line 942, in _send_handling_auth
    response = self._send_handling_redirects(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_client.py", line 979, in _send_handling_redirects
    response = self._send_single_request(request)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_client.py", line 1014, in _send_single_request
    response = transport.handle_request(request)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_transports\default.py", line 249, in handle_request
    with map_httpcore_exceptions():
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\contextlib.py", line 158, in __exit__
    self.gen.throw(typ, value, traceback)
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\httpx\_transports\default.py", line 118, in map_httpcore_exceptions
    raise mapped_exc(message) from exc
httpx.ConnectError: [WinError 10061] No connection could be made because the target machine actively refused it

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Program Files\KNIME\plugins\org.knime.python3.nodes_5.4.1.v202501291500\src\main\python\_node_backend_launcher.py", line 1055, in execute
    outputs = self._node.execute(exec_context, *inputs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\plugins\org.knime.python3.nodes_5.4.1.v202501291500\src\main\python\knime\extension\nodes.py", line 1237, in wrapper
    results = func(*args, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\plugins\org.knime.python.llm_5.4.2.v202502111701\src\main\python\src\models\base.py", line 735, in execute
    answer = _call_model_with_output_format_fallback(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\plugins\org.knime.python.llm_5.4.2.v202502111701\src\main\python\src\models\base.py", line 757, in _call_model_with_output_format_fallback
    return response_func(model)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\plugins\org.knime.python.llm_5.4.2.v202502111701\src\main\python\src\models\base.py", line 733, in get_response
    return chat.invoke(conversation_messages)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_core\language_models\chat_models.py", line 158, in invoke
    self.generate_prompt(
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_core\language_models\chat_models.py", line 560, in generate_prompt
    return self.generate(prompt_messages, stop=stop, callbacks=callbacks, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_core\language_models\chat_models.py", line 421, in generate
    raise e
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_core\language_models\chat_models.py", line 411, in generate
    self._generate_with_cache(
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_core\language_models\chat_models.py", line 632, in _generate_with_cache
    result = self._generate(
             ^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\langchain_openai\chat_models\base.py", line 522, in _generate
    response = self.client.create(messages=message_dicts, **params)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_utils\_utils.py", line 279, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\resources\chat\completions.py", line 863, in create
    return self._post(
           ^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1283, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 960, in request
    return self._request(
           ^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1020, in _request
    return self._retry_request(
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1098, in _retry_request
    return self._request(
           ^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1020, in _request
    return self._retry_request(
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1098, in _retry_request
    return self._request(
           ^^^^^^^^^^^^^^
  File "C:\Program Files\KNIME\bundling\envs\org_knime_python_llm_5.4.2\Lib\site-packages\openai\_base_client.py", line 1030, in _request
    raise APIConnectionError(request=request) from err
openai.APIConnectionError: Connection error.

ERROR Chat Model Prompter  4:133      Execute failed: Connection error.