LOG: http://pastebin.com/mmUCYcsW

public static void registerRender(RCM_BaseItem item) {
    RenderItem renderItem = Minecraft.getMinecraft().getRenderItem();
    renderItem.getItemModelMesher().register(item, 0, new ModelResourceLocation(RCM_Main.MODID + ":" + item.getName(), "inventory")); // This line
}