Why is my prototype missing parts when I click Play?

My prototype is missing elements when I click Play on the Prototype tab to see how will it look on other devices.

Here is the link to prototype https://www.figma.com/file/LPVmX0Ku1vj3xXyWYa9Tqz/Untitled?node-id=0%3A1

Because your other elements isn’t inside the frame that is set to be Flow

You have a messy layering.