.

app.py

@@ -103,7 +103,7 @@ def handle_userinput(user_question):
     # 대화 기록을 저장합니다.
     st.session_state['chat_history'] = response['chat_history']
 
-    for i, message in enumerate(st.session_state.chat_history):
+    for i, message in enumerate(st.session_state['chat_history']):
         if i % 2 == 0:
             st.write(user_template.replace(
                 "{{MSG}}", message.content), unsafe_allow_html=True)