Why doesn't authorization by phone number work?

Question

Android

Tell me what the problem is, there is an application that has authorization by phone number. Works fine on my phone.

On another phone, there is a generated APK, it does not work on it, it gives an error: I


use the emulator for revenge! At the same time, I enter the same phone number, and SMS comes to this number. And if a person enters from his device, then he gives an error.