Update app.py

app.py

@@ -50,8 +50,8 @@ if prompt := st.chat_input("Ask me anything.."):
     # Display assistant response in chat message container
     with st.chat_message("Jojo"):
         st.markdown(response)
-    memory.save_context({"question":prompt}, {"output":prompt})
-    memory.chat_memory.messages = memory.chat_memory.messages[-15:]
+    st.session_state.memory.save_context({"question":prompt}, {"output":prompt})
+    st.session_state.memory.chat_memory.messages = st.session_state.memory.chat_memory.messages[-15:]
     # Add assistant response to chat history
     st.session_state.messages.append({"role": "Jojo", "content": response})