1. Your ingame name: Clxrity
   
2. The offender's exact ingame name: 1piemanpie
   
3. A description of what rule they broke/how they broke it: Auction scamming. If in an auction, the item is called "Unknown", that means it's an item/block from 1.8. (The auction plugin was not updated to 1.8) Therefor, the item is not actually what the player claims it to be.
   
4. Evidence/full screenshots.