[HELP] Adding VIP-Only equipment to special weapons menu (TTT)

I’ve tried adding VIP-Only equipment for VIPs but it made the whole shop crash(the one you open when you press C as a traitor or detective), and that pointed out something pretty obvious, I need to edit the whole shop code to add that, can anyone help me?

Anyone?

More details needed
What is your current code?
Which admin mod are you using?