Smart Animate cannot work

I am working on this tutorial: Prototype a Movie Ticket Booking app in Figma - Full course - YouTube

In this part: ✂️ Tutorial - YouTube

I cannot choose to navigate to frame “homepage” (in tutorial it should be frame “1”), and the Smart Animate is unavailable for me to choose.

How can I navigate from the “back” icon to the homepage? Thanks in advance.

This is my Figma:

This is Tutorial’s screenshot for the same step:

This is my Figma:
https://albumizr.com/skins/bandana/index.php?key=XCqz#1

This is Tutorial’s screenshot for the same step:
https://albumizr.com/skins/bandana/index.php?key=XCqz#2