I got an error notice saying that my Current Session has expired along with 3 options: this was a desktop session

1. Sign in again as unknown user (I'm recalling this so the language may not be perfect)

2. Export unsynced notes and sign out

3. Sign Out

I don't know how my user account was unknown as I've been using Notebooks locally while logged into my account for many months but somehow that happened.

I attempted Option 2 (I believe) and it just hung for a while. I repeated that option and then went to notebook.zoho.com, logged in, and almost all of my notebooks and notes were gone. There were only a random few left - a couple of recent notes and one not so recent.

Net is that I cannot recover the notes and it's a huge loss. I can't find the znotes locally nor at zoho.com when I log into my account. 

Are they gone forever?