Streamlit app on kubernetes

Hi I am running a multiclass streamlit application for a backend fast api based api.

So the app is running fine in local and eveyrthing is working fine.But when i am deploying it on k8 first login page is opening but when i am clicking on signup pop up ui is coming but when i am clicking on signup nothing is happening although it is supposed to call the fast api and register the details but nothing is happening no error nothing.