Why can’t I download i Easy Drive app on my IPhone 12

All apps are not available in all countries.

If you can't make purchases or update apps, including free apps, you need to update your payment method or add a new one. If you already verified that a payment method is available in your country or region and you're still having trouble, learn more.

iEasyDrive app has been removed from the App Store, thought 3 years ago or so.

You can try contacting the app developer, but I don't know if it will help.

See -> How to contact an app developer

How to contact an app developer - Apple Support