Update app.py

app.py

@@ -77,7 +77,7 @@ models_without_temperature = [
 # Function to call OpenAI API
 def get_ai_response(prompt, history):
     if not client:
-        return get_demo_response(prompt)
+        return "No API key provided. Running in demo mode."
     
     try:
         # Use the system prompt from the session state
@@ -162,18 +162,6 @@ with st.sidebar:
     
     st.markdown("---")
 
-    # Chat History Section
-    st.markdown("### Chat History")
-    for conv_id, conv_data in st.session_state.conversations.items():
-        if st.button(conv_data["title"], key=f"hist_{conv_id}"):
-            st.session_state.current_conversation_id = conv_id
-            st.experimental_rerun()
-
-    # New Chat Button
-    if st.button("+ New Chat"):
-        create_new_chat()
-        st.experimental_rerun()
-
 # Main chat window
 with st.container():
     current_id = st.session_state.current_conversation_id