Your daughter's playlists, friends, and your music library are independent from her subscription status. She should still have them as long as she keeps using the same username she has been using all along.
Try logging into her account settings on your browser with her email. Her username will be displayed after you login.
If everything looks good, logout of the app in her device, and be sure to use that username, instead of her email address, to login to her account. It's the one with her music.
Hope it helps. 🙂
osorniosRock Star 23
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