How do I make a scrollable image inside a mobile screen?

Design help General
#1

I want to have a mobile mock-up on the website, like this one: https://mockup-scroll.webflow.io/

But when I apply the image, it doesn’t scroll inside the mock-up. What am I doing wrong?

Thanks!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

#2

Can you share a read-only link?

#3

@joejola Here it is: Webflow - Esfera's Superb Site

#4

It’s bringing me to a 404. Did you take it down?