Tier 0 Fawn connection

so the Fawn box for the starting point machines does not let me run the ls command once I make the ftp connection. I was trying to do it without the walkthrough bc im new and actually want to learn but it kept saying 425 failed to establish connection but it was already connected? Basically I could ping the box, I could use nmap to map(?) it but if I wanted to run any ftp commands it would just say no. I did try resetting the box and my vpn connection separately and at the same time but to no avail.

I should add that I did the same thing as the walkthrough, but the walkthrough didn’t get the error and I can’t find anything about this online