Update app.py

set debug=False and host and port to the correct ones

app.py

@@ -386,4 +386,4 @@ def update_closest_points_div(
         
 
 if __name__ == "__main__":
-    app.run_server(debug=True)
+        app.run_server(debug=False, host='0.0.0.0', port=7680)