Hi there, @Juan1596garcia. 👋
Sorry to hear that you're having trouble.
Based on your message, it sounds like you're referring to a Premium Access session.
Premium Access:
If you accept a complimentary Pandora Premium access session (by interacting with an advertisement in order to listen to content on-demand), you'll automatically be transitioned into the Premium experience, which looks a little different from our radio-only or Plus experiences.
You can find out more about how these sessions work here: Premium Access
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Could you share a bit more about what is happening when you attempt to listen to songs on-demand?
Are you receiving any error messages? If so, what exactly does it say?
Let me know. 🎧