Closed Mod isn't working pls help!

I need some help. I downloaded this Irken race mod but its not working, I managed to get the Irken insignia where the gender options is but thats it. all the tutorials I read said to put it in my giraffe_storage but I don't have that so I put it in storage and then into mods but it still won't work. I even tried using the mod launcher on steam but it gives me an error window ( it says bad lexican cast) can someone please tell me what I'm doing wrong QnQ