remove test code

app.py

@@ -232,16 +232,13 @@ def main() -> None:
             with st.spinner(f'answering the question...'):
                 answer = qa(query=question, documents_to_search=20, model_name='gpt-4',
                             api_key=st.session_state.open_api_key)
-                if random.randint(0, 10) % 2 == 0:
-                    raise Exception("test")
                 show_audio_message(answer)
                 st.session_state.question = None
                 show_question_input()
         else:
             show_question_input()
     except Exception as e:
-        with st.expander("exception"):
-            st.exception(e)
+        logging.error(e)
         st.warning("Whoops, looks like a hiccup in the system! But no worries, our tech wizards are already on the case, working their magic. In the meantime, how about giving it another shot?")
         if st.button("Give It Another Go!"):
             st.experimental_rerun()