My App buttons disappear

I created an app but it works fine testing on the web, but when I test live on my mobile, the buttons are off bottom of screen. I use fit container and didn’t use scroll feature so I don’t understand why.

My app is called “animal sounds”, it is a public project

can you share a link to your project here so we can take a look at it for you?


Here is the link

The “Animals” screens shows buttons that are missing but Colour, Shapes, Numbers screebs don’t show buttons.

Thanks for helping me with this