How to click on item in invenotry

[p1xelzyx]

I have read a lot of questions about mineflayer like this one but I just can't do it...
I want to switch to a slot, right click to open a gui then click an item
Here is what I have;

bot.setQuickBarSlot(3); // works
bot.activateItem(); // works
bot.clickWindow(13, 1 ,0) // doesn't work

If I remove bot.clickWindow from my code I get no error but if I keep it I get this error:

btw this is on 1.7 - 1.8 minecraft server and my bot is on 1.8.9, everything else works like chat and stuff, bot.on("windowOpen"... is working perfectly etc.

[p1xelzyx]

Please guys I tried everything