fixed openai key

app.py

@@ -16,5 +16,5 @@ if st.button('Subimt') and openai_key:
             print("response",response)
         except Exception as e:
             st.error(f'An error occurred: {e}',icon=':no_entry_sign:')
-else:
+elif st.button('Submit') and not openai_key:
     st.error('Please enter your OpenAI key',icon="🚨")