the gpt4all model is not working

[SrinivasaKalyan]

PS D:\D\project\LLM\Private-Chatbot> python privateGPT.py
gguf_init_from_file: invalid magic number 67676d6c
gguf_init_from_file: invalid magic number 67676d6c
gguf_init_from_file: invalid magic number 67676d6c
Traceback (most recent call last):
File "D:\D\project\LLM\Private-Chatbot\privateGPT.py", line 95, in
main()
File "D:\D\project\LLM\Private-Chatbot\privateGPT.py", line 50, in main
llm = GPT4All(model=model_path, max_tokens=model_n_ctx, backend='gpt2', n_batch=model_n_batch, callbacks=callbacks, verbose=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\srini\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\langchain\load\serializable.py", line 74, in init
super().init(**kwargs)
File "pydantic\main.py", line 341, in pydantic.main.BaseModel.init
pydantic.error_wrappers.ValidationError: 1 validation error for GPT4All
root
Unable to instantiate model: code=129, Model format not supported (no matching implementation found) (type=value_error)