@liliatsea I moved your post over to this existing thread: Family Plan: "Someone Else is Listening" Message
Unfortunately, we do not provide phone support however I am happy to provide a response here.
If that error message is appearing, then that means the both of you are still logged into the same account on each of your devices.
The both of you will need to sign out of Pandora on your devices, and then sign back in using your respective email addresses.
Let me know if you continue to run into issues with this after signing out and back in to your personal accounts.
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