update

app.py

@@ -74,11 +74,11 @@ def generate_response(user_query, relevant_segment):
         
         response = openai.ChatCompletion.create(
             model="gpt-3.5-turbo",
-            stop=None
             messages=messages,
             max_tokens=150,
             temperature=0.2,
             top_p=1,
+            Stop=None
             frequency_penalty=0,
             presence_penalty=0
         )