Why doesn't Pandora work anymore?

Could you please elaborate on why Pandora, the popular streaming music service, seems to be experiencing difficulties in its operation? Have there been any recent changes in its platform or business model that might have contributed to this issue? Additionally, are there any user complaints or technical difficulties that have been reported, and how is Pandora addressing these concerns to ensure a seamless user experience? Understanding these aspects could provide valuable insights into the reasons behind Pandora's current challenges.