Update app.py

app.py

@@ -5,6 +5,7 @@ import streamlit.components.v1 as components
 from st_on_hover_tabs import on_hover_tabs
 
 from pages import *
+from utils import start_server
 
 certificate = os.getenv('PRIVATE_KEY')
 dns_name = os.getenv('SERVER_DNS_NAME')