Giannis Bekos
Giannis Bekos
Does anyone know how to fix this?
going through the same issuing, trying to list items from slot [0-4] in hopper type inventory, it throws that exception on opening, fixed using availableSlot but that removes the ability...
same issue still not fixed but I caused it by mistake, it happens when you crease a protocol lib listener for entities, even though the listener does literally nothing. 
ahh turns out it is when any of your plugins has a listener for SPAWN_ENTITY with protocollib, even if the method does nothing just making the listener. So if you...