The epic hopper plugin changes the nature of hoppers ingame that no longer allow hoppers to feed the fuel slots on furnaces or feed chests in minecarts. This change destroys players ability to auto smelt objects or create auto sorters. This is a disastrous change and needs to be fixed immediately.

Also epic furnaces level down randomly from any level back to 1 on a regular basis, wasting player's time and ingame money. This happens with enough frequency that players no longer level their furnaces up making this plugin utterly worthless and a waste of money and time. Request this be fixed or a refund from developer.