Hey there, @Apple839. 👋
Sounds like you're having trouble with the Pandora app shutting off. However, since you're using an iPhone device, I moved your post over to the iOS space to keep the community organized.
Could you share more details about what's happening?
A good place to start is with the basic troubleshooting steps here: iOS Troubleshooting
Let me know how it goes. 🎧