Update app.py

app.py

@@ -62,7 +62,7 @@ def get_conversation_chain(vectorstore, model_name):
 
     # llm = ChatOpenAI()
     
-    memory = ConversationBufferMemory(memory_key='chat_history', return_messages=True)
+    memory = ConversationBufferMemory(memory_key='chat_history', input_key='question', output_key='answer', return_messages=True)
     
     conversation_chain = ConversationalRetrievalChain.from_llm(llm=llm,
                                                                # condense_question_prompt=CONDENSE_QUESTION_PROMPT,