Differences between screens

Questions about Thunkable
1

Hi,
When I’m working in my app, and in my phone, everything shows the way it should be, but when I try to publish, I can see a lot of phones where the screen is having a problem. How can I solve this, please. Thanks

Capturaapp rara
Capturaapp rara433×760 64.5 KB

2

Captura2
Captura21616×788 187 KB