Hi Gianni,
Yes, I understand, when you need it –– even 24 hours might feel endless.
I have been in your shoes, and since I try to save often, have increments, and autosave on, while using different drives.
Anyway, that is not helping right now, I know.
When I wrote to look into that specific folder, I meant to look for the c4d file that might have been created at one point perhaps.
Have you tried to copy the file and merge it into a new scene or connect via X-Ref? Not that I have high hopes, but just in case.
Fingers crossed.