Update app.py

app.py

@@ -193,8 +193,8 @@ with gr.Blocks() as demo:
 
     # events
     # ... unchanged ...
-    download_csv_btn.click(download_conversation_csv, state, download_csv_file)
-    download_json_btn.click(download_current_dataset, None, download_json_file)
+    download_csv_btn.click(download_conversation_csv, conversation_state, download_csv_file)
+download_json_btn.click(download_conversation_json, conversation_state, download_json_file)
 
 # -----------------------------
 # Startup log