One signal with pop UP

one signal with pop UP. I use One Signal extension in my app, I would like that when I receive a notification alert, even if the app is closed, it opens a screen with the title of the message and its text, with an OK button. This used to happen before and is no longer happening. it is just playing the message arrival sound and the bell is active next to the clock.

Is there any way, when receiving the message received notification, to show a message screen with the title and the message received, even when the app is closed?

In that case you need to run your app in background then you can do what ever you want.