where are my boards created in freefrom?

I had three quite big boards, worked on them every day.

Before 2 days of the presentation, I want to check my work, I couldn't find any!!

I don't know how to get them back, which is super frustrating, as i've put so many hours in to creating them for my studies. the "recents" folder is also empty. Does anyone know what to do?

nothing in my bin 🗑️ my Icloud recover is empty, I didn't delete any of my boards, plz help