runtime error

Exit code: 1. Reason: Loaded as API: https://maguid28-transcripttool.hf.space ✔ Since `api_name` was not defined, it was automatically set to the first available API: `/transcribe_and_stream_logs`. Traceback (most recent call last): File "/home/user/app/app.py", line 8, in <module> from langgraph_agent import react_agent File "/home/user/app/langgraph_agent.py", line 19, in <module> chat = ChatOpenAI( File "/usr/local/lib/python3.10/site-packages/langchain_core/load/serializable.py", line 130, in __init__ super().__init__(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/pydantic/main.py", line 253, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) pydantic_core._pydantic_core.ValidationError: 1 validation error for ChatOpenAI default_headers.Subscription-Key Input should be a valid string [type=string_type, input_value=None, input_type=NoneType] For further information visit https://errors.pydantic.dev/2.11/v/string_type

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