Update chatbot.py

chatbot.py

@@ -68,7 +68,7 @@ def demo_chain(input_text, memory):
     conversation = ConversationChain(
         llm=llm,
         verbose=langchain.globals.get_verbose(),
-        memory=memory
+        history=memory
     )
 
     chat_reply = conversation.predict(input=input_text)