I think I just lost all of my folders

I was working in Lightroom the other night and I may have deleated all of my photos.  

When I go into my Lightroom Classic, I am currently onlyu showing 67 photos.  I am somehow missing 20,000 photos.  

I have them backed up on external hard drives so I can reload and go from there, however I am showing zero catalogs, zero synced photos and only 1 quick collection. Nothing in my smart collections.  Yikes!

I was trying to free up space on my Hard drive.  Any Ideas?

Thanks