I am not getting alerts outside of the app on Android

I am not getting alerts outside of the app on Android

When installing our GHScanner Alerts App, there are a few installation questions that are asked in the beginning; one of them is, Do you want to allow notifications?. If you said no, then the app cannot give you notifications outside of the app,

You will need to go into your phone's device settings and navigate to notifications, select our app in the list, and allow notifications.