Notebook disappeared out of thin air

[PascaleP 0]

Hi, I'm writing to ask if anyone has dealt with this same issue as it has been extremely frustrating for me. One of my notebooks has appeared to have disappeared out of thin air. I'm a Mac user.

- None of the notes are in the trash.

- I'm able to find older notes in the trash that I had deleted from the notebook myself, but they now say that they had been in a completely different notebook.

- I'm able to find this text when I go to the search bar (the notebook was titled "Other"):

But when I click on it, it says "0 notes found".

- I haven't made any other changes to my computer recently.

I am not a premium user and would appreciate any advice anyone could give about how to recover my notebook.