iOS App stuck on white screen if run in emulator

I’ve made an application using ionic+stencil pwa starter + capacitor to build the app for ios and android.
In android case I have no problem but when I run the app inside xcode emulator the app stay stuck in a white screen.
I don’t know if it is a capacitor problem, ios problem…it’s the first time that I use xcode and do an apple app.
Xcode don’t give me errors and search on google was useless.
Someone else in this situation??

I don’t post code or anything else because I don’t know what can help. If something needed, tell me.
thank you in advance for help

Erica