Updated Docker now everything is gone + 90GB of Audiobooks are still on Server (hidden)

I don't even know how to describe this other than i updated it and it nuked absolutely everything. There's no way to find the paths i had setup or Any file structure for that matter but it very obviously is still on there because no space got cleared up. I can't even find the Files which means i either reset the whole 8TB NAS (Not an option since i can't back it up) or live with perma 90Gigs i can't use. Is there ANYTHING i can do?

UGREEN 2 Bay NAS

8TB Seagate NAS Drive