Issue while collecting data blank form is not getting download

One of my colleague is facing the issue while downloading the blank form to enter the data,
We tried so many times with correct login details and url still the issue persist.

Attaching the screenshot for reference please find.

used url as “https://kc.humanitarianresponse.info

Welcome to the community, @vipinkumarvarma! Would you also mind sharing a screenshot of the Settings>Server to see if the configurations were done correctly?

As a backup, you could always refer to this article that should help you configure your app: