Button "i" information

My app’s URL: https://docesmel.glideapp.io/

Hi, it’s my first time try to create my own app, but in the home appears an icon with “information”.
And when I send to my friends they can not play the button

I did some things wrong ? Can help me how to fix it.

Thanks so much

How are you building the screen? Looks like the position to tap is above the button.