I've updated the plugin to include ranks that are set by permission to configure the starting and max reputation of players. Please either regenerate the config or copy these values into it:

This is just a small update that should fix a NPE exception on startup after introducing the material blacklist.

In this update I added the ability to blacklist certain items from being listed on the market through a configurable blacklist in the config (Thank you @KingDingers for the suggestion!). Currently, you can prevent items being sold that have certain item types or certain characters in their lore.