Firenote: Notes and Todo Lists in New Tab

Lost all my notes

Hi there, I am using Firenote on my chromebook. I was loving the extension, however, one day all the contents in the list notes disappeared. All the notes with their titles are still there, but their empty, all the content, the actual, notes, have disappeared. Do you know where they might be? Where are they stored? Can I retrieve them? How do I prevent this from happening in the future? I really appreciate the help.
-Phil