@EventHandler
    public void chunkUnload(ChunkUnloadEvent event){
        for(Entity entity:event.getChunk().getEntities()){
            for(GameInstance gameInstance:plugin.getGameInstanceManager().getGameInstances()){
                if(entity.getWorld().getName().equals(gameInstance.getStartLocation().getWorld()) &&entity.getLocation().distance(gameInstance.getStartLocation()) <300)
                    entity.remove();
            }
        }
    }