There are two types of AuctionMaster that seem to be circulated around, one that uses 'me.qKing12.AuctionMaster' and one that uses 'me.intel.AuctionMaster'. I have received complaints about compatibility with both of them, so now am providing a zip for each version, please use the one that hopefully doesn't throw an error (not both at the same time).

Also as a request, I added a setting that allows you to customize the glass that appears on the display! Just add the setting 'custom-display-material: MATERIAL' anywhere in the config.yml