Hi shakur87,
If you haven't already, make sure you're running the latest iOS version (iOS 16.0.2). Updates are designed to fix bugs and enhance the user experience. You can find steps for updating here:
Update your iPhone or iPad - Apple Support
Then, make sure your subscription to Apple Music is still active to play songs outside of your library:
Use Siri with Apple Music
If you have an individual, family, or student subscription to Apple Music, you can ask Siri to play anything from the Apple Music catalog, find songs by lyrics, add music to your library, and more.
You can find more details here: Use Siri to play music and podcasts - Apple Support
Should the issue persist, we suggest you contact Apple Support so that they can look into this with you further.
Have a great day!