FIX - "Note Unavailable - Owner Stopped Sharing" - Error when sharing notes

I was having this issue for a while with the same person.

When I shared my notes, she was not able to open them up on her phone because of the "Note Unavailable - Owner Stopped Sharing" error. Finally I tried sharing by email and she realized that she needed to update her iCloud settings in her phone to make sure that the Notes app was connected to iCloud.

That fixed the issue we had been having for months. Hope it helps you too!