Not Receiving OneSignal Push Notifications in Bubble PWA

I am using the OneSignal - Push Notifications 2024 plugin (OneSignal - Push Notifications 2024 Plugin | Bubble) for my PWA build using Bubble. I have uploaded OneSignalSDKWorker.js to the root directory and inserted the API Key and APP ID values in the plugin settings. When I test the app, the user is successfully registered in User Records on OneSignal. However, when I test sending push notifications on OneSignal, although the status shows as “delivered,” the notifications are often not received. Could you please help me understand why this might be happening and how I can resolve it?

It seems that Onesignal discontinued any service to Bubble.