It can be found here for anyone wondering: http://loginzlib2vrak5zzpcocc3ouizykn6k5qecgj2tzlnab5wcbqhembyd.onion/ and here: http://zlibrary24tuxziyiyfr7zd46ytefdqbqd2axkmxm4o5374ptpc52fad.onion/

I don't have a clearnet link since the mirror I've been using appears to have been seized, but the onion link should be the most reliable way to access the z-library.