like discord.gg/pkgzone or similar, it might have expired or been taken down. Your best bet is to:
Users frequently exchange tips on configuring apps like FPKGi (a PKGi clone for modern consoles) and other utilities . Key Tools Managed via PKG-Zone pkg-zone discord
If you are looking for a paper on the concept of .pkg files or game preservation communities: like discord
If you are trying to find the server, you can join it here: like discord.gg/pkgzone or similar
If you are just trying to download games or homebrew tools: