It could be a setting. For example, if you selected Android version 11+ inside Construct and your phone is Android 10 it won't install. Android phones tend to give idiotic, rather than helpful messages when it can't install an app.
By the way, the Google verification thing is simply a form you fill in to state who you are and where you live. It wasn't complicated. That in itself shouldn't have gotten your account closed unless you simply ignored the request.