Incorrect Password in Terminal (VSC)

Hello, I’m new in The Odin Project and I’m setting up my PC (web development 101 - Installations).
I want to enable the guest addition in Xubuntu, I enter this code:
"sudo apt install linux-headers-$(uname -r) build-essential dkms"
then for the password it’s always wrong, idk why?? i mean im sure i type it correct, pls help!

What password are you entering?