Update app.py

app.py

@@ -159,4 +159,4 @@ if prompt := st.chat_input(f"Hi I'm {selected_model}, ask me a question"):
 
     st.session_state.messages.append({"role": "assistant", "content": response})
 
-st.button("retry", key="retry", on_click=retry_click)
+st.button("retry", key="retryButton", on_click=retry_click)