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Hey, this is a pretty big thing. So I got my hands on a code/cipher which I have no experience with, and have absolutely no idea what it says. It is a vigenere cipher, and I'm wondering if anyone would tell me what it says, or even how to do it, or if its possible, because I've tried but I can't seem to do it, just adds up to more random letters. (BTW if you get this and tell me how you did it I will give you brainly)

This is the code:
XFZVLLBRARBWFSTIGRMVTTLRZWZSZWMVJYYONVACRVYVZHNB
This is the key: FRIEND