@SideOnly(Side.SERVER)
@SubscribeEvent
public void onTick(TickEvent.ServerTickEvent event) {
    if (event.phase == TickEvent.Phase.START) {
        this.scheduler.tickSyncScheduler();
    }
}

@SideOnly(Side.CLIENT)
@SubscribeEvent
public void onTick(TickEvent.ClientTickEvent event) {
    if (event.phase == TickEvent.Phase.START) {
        this.scheduler.tickSyncScheduler();
    }
}