Unity – Why did I close the ad and crash my game on Android devices?

I created an Android game with Unity. But, when I opened my game, I see a black screen and a closed game.

It works on a tablet but does not work on mobile phones. I tested it on 2 mobile phones.

On the first phone on which I installed it, I only see a black screen and a closed game.

On the second one, it was installed once and worked, but when I uninstalled it and tried to reinstall it, I have a black screen and a closed game.

What is happening and why?