after vector db initialisation prompts not working

[Dheemant6]

(.venv) PS E:\chat-with-your-doc> streamlit run chat_web_st.py

You can now view your Streamlit app in your browser.

Local URL: http://localhost:8501
Network URL: http://172.16.10.176:8501

Loaded vector db from local: ./data/vector_store/index
2024-03-20 16:48:26.612 Uncaught app exception
Traceback (most recent call last):
File "E:\chat-with-your-doc.venv\Lib\site-packages\streamlit\runtime\scriptrunner\script_runner.py", line 552, in _run_script
exec(code, module.dict)
File "E:\chat-with-your-doc\chat_web_st.py", line 77, in
result_answer, result_source = docChatBot.get_answer(
^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc\chatbot.py", line 254, in get_answer
result = self.chatchain({
^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\base.py", line 140, in call
raise e
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\base.py", line 134, in call
self._call(inputs, run_manager=run_manager)
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\conversational_retrieval\base.py", line 104, in _call
new_question = self.question_generator.run(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\base.py", line 239, in run
return self(kwargs, callbacks=callbacks)[self.output_keys[0]]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\base.py", line 140, in call
raise e
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\base.py", line 134, in call
self._call(inputs, run_manager=run_manager)
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\llm.py", line 69, in _call
response = self.generate([inputs], run_manager=run_manager)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chains\llm.py", line 79, in generate
return self.llm.generate_prompt(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chat_models\base.py", line 143, in generate_prompt
return self.generate(prompt_messages, stop=stop, callbacks=callbacks)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chat_models\base.py", line 91, in generate
raise e
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chat_models\base.py", line 83, in generate
results = [
^
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chat_models\base.py", line 84, in
self._generate(m, stop=stop, run_manager=run_manager)
File "E:\chat-with-your-doc.venv\Lib\site-packages\langchain\chat_models\openai.py", line 321, in _generate
role = stream_resp["choices"][0]["delta"].get("role", role)
~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range