Lost (visibility) of folders

I was looking at some old photos on my cloud and suddenly, without any intention of doing something else, a few of my folders, picture folders, has dissapeared from my shared pictures folder.
While I was trying to see where they’re gone, looking at the menu where you would want to move files, I could see all my dissapeared folders in that menu. You know, when you try to move files it come up a menu and from there you try to select the new location, I was able to see them in that menu, but from their location on the shared pictures, they’re gone. Can you please help me recover them?
thank you.

Hello, maybe you can try some recovery tools to scan and find your photos and other files you need, then you can recover them.