Minecraft custom bow don't work

If I use if in my bow right Click the texture bugs and I can't shoot

    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
    {
    	ExtendedPlayer props = ExtendedPlayer.get(par3EntityPlayer);
    	if(props.Volk == Volk_1 || props.Volk == Volk_2 || props.Volk == Volk_3 || props.Volk == Volk_4 || props.Volk == Volk_5) {
        ArrowNockEvent event = new ArrowNockEvent(par3EntityPlayer, par1ItemStack);
        MinecraftForge.EVENT_BUS.post(event);
        if (event.isCanceled())
        {
            return event.result;
        }

        if (par3EntityPlayer.capabilities.isCreativeMode || par3EntityPlayer.inventory.hasItem(Item.arrow.itemID)) {
        	par3EntityPlayer.setItemInUse(par1ItemStack, this.getMaxItemUseDuration(par1ItemStack));
        }
    	}
        return par1ItemStack;
    }