runtime error

Exit code: 1. Reason: database created successfully! Traceback (most recent call last): File "/home/user/app/app.py", line 43, in <module> qa_chain = RetrievalQAWithSourcesChain.from_chain_type(llm=initialize_llm, chain_type="stuff", retriever=retriever) File "/usr/local/lib/python3.10/site-packages/langchain/chains/qa_with_sources/base.py", line 95, in from_chain_type combine_documents_chain = load_qa_with_sources_chain( File "/usr/local/lib/python3.10/site-packages/langchain_core/_api/deprecation.py", line 181, in warning_emitting_wrapper return wrapped(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain/chains/qa_with_sources/loading.py", line 200, in load_qa_with_sources_chain return _func(llm, verbose=verbose, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain/chains/qa_with_sources/loading.py", line 64, in _load_stuff_chain llm_chain = LLMChain(llm=llm, prompt=prompt, verbose=verbose) # type: ignore[arg-type] File "/usr/local/lib/python3.10/site-packages/langchain_core/_api/deprecation.py", line 214, in warn_if_direct_instance return wrapped(self, *args, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain_core/load/serializable.py", line 125, in __init__ super().__init__(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/pydantic/main.py", line 214, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) pydantic_core._pydantic_core.ValidationError: 2 validation errors for LLMChain llm.is-instance[Runnable] Input should be an instance of Runnable [type=is_instance_of, input_value=<function initialize_llm at 0x7facf8bec790>, input_type=function] For further information visit https://errors.pydantic.dev/2.10/v/is_instance_of llm.is-instance[Runnable] Input should be an instance of Runnable [type=is_instance_of, input_value=<function initialize_llm at 0x7facf8bec790>, input_type=function] For further information visit https://errors.pydantic.dev/2.10/v/is_instance_of

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