Hello i noticed that many had problem with shop in this mod me too, so im uploading mine fix. I tested it on listen server and everything works. But i got no idea how about dedicated servers. This fix are older Server Perks files (i got them from my old backup Killing Floor files from 2013). Just paste this files to your Killing Floor main folder.
Update: I noticed this fix crashes game so i find other way to finally launch this mod with shop and no crashes! When u paste files u need to have this mutators: - Server Veterancy Handler v6 - WPC Aliens Path mutator - WPC Aliens Killing Floor Detail Mut