pi zero w – Illegal Instruction for NordVPN

I’m fairly new into all of this and normally just try to follow guides on how to install things,
I followed the NordVPN installation for Raspberry Pi, but after trying to do the “nordvpn login” command, I received a “illegal instruction”. I am unsure how to fix it and would appreciate any help. I have tried doing ‘sudo apt-get-update’ and this is what it returned:

pi@raspberrypi:~ $ sudo apt-get update
Hit:1 http://archive.raspberrypi.org/debian buster InRelease
Hit:2 http://raspbian.raspberrypi.org/raspbian buster InRelease
Hit:3 https://repo.nordvpn.com//deb/nordvpn/debian stable InRelease
Reading package lists... Done

other than that, I still get ‘illegal instruction’

If there is any more info needed, I am willing to provide it. Thanks!

I am using a Raspberry Pi Zero W Rev 1.1 (not sure if this helps)