Apps don't open on iOS 14.6

[onegina]

Hello, could you please help me?

I have just installed PowerApps on my Iphone 11, iOS 14.6. I created 2 different apps on my Laptop and saved them. One of them is PowerApps Training app from Microsoft, which I customized during learning PowerApps and saved. None of these 2 apps opens now on Iphone, I already deleted PowerApps and installed again, it doesn't help. During the opening it shows an error "The app can't be opened correctly". On the Laptop everything is ok.

Please help, thank you!