Hello, I'm having a strange problem

I'm trying to open a gui when I rightclick a block, the problem is that nothing happens.

I did some research and found that forge sees my GuiHandler class but doesn't register the getServerGuiElement & getClientGuiElement methods.

Did I do something wrong?

 

GuiHandler:

public class GuiHandler implements IGuiHandler {

    @Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        return null;
    }

    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        if(ID == 10) return new GuiMachineBlock();
        return null;
    }
}

 

Init:

@Mod.EventHandler
    public void init(FMLInitializationEvent event){
        proxy.init();
        NetworkRegistry.INSTANCE.registerGuiHandler(MatthProject.instance, new GuiHandler());
    }

 

Debug:

I do call openGui:

 

@Override
    public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumFacing side, float hitX, float hitY, float hitZ) {
        if(!world.isRemote) {
            player.openGui(MatthProject.instance, 10, world, pos.getX(), pos.getY(), pos.getZ());
            //FMLNetworkHandler.openGui(player, MatthProject.instance, 10, world, pos.getX(), pos.getY(), pos.getZ());
        }
        return true;
    }

 

But I believe this is not the problem, I did everything as I used to do on a 1.7 mod.

I didn't find any changes for 1.8.9 on the internet.

 

For more code visit my github repo: https://github.com/Matthbo/MatthProject

Oh i see the problem... 

Thanks for the help.