Hey, thank you a lot! Works perfectly!
I really recommend you to add this editing to the main plugin, since you added the keyword "death" in the ranksystem, I created a math where ranks truly mirror player's level in the server. And now, with this editing you have made I can give admin all knives without using crxranks_give_xp and disturb the rank's purpose (in my case).
PS: Just in case you need a third feedback, the knives arent saving after disconnect indeed.