hope last fix :)

app.py

@@ -585,9 +585,9 @@ with gr.Blocks(css=CUSTOM_CSS, theme=gr.themes.Soft()) as demo:
 
     def update_login_visibility(oauth_token: gr.OAuthToken):
         if oauth_token.token is None:
-            return gr.Markdown(visible=True), gr.LoginButton(visible=True)
+            return gr.Markdown(visible=True)
         else:
-            return gr.Markdown(visible=False), gr.LoginButton(visible=False)
+            return gr.Markdown(visible=False)
     
     demo.load(
         fn=update_login_visibility,