The psdadmin script is a bit (not great) and it works by downloading and running scripts from the PDS GitHub repo, it's possible GitHub (or that specific asset) isn't reachable atm

all the files it's trying to download are wrong. it tries to, e.g, download list.shaccounts.shaccounts.sh list overall it is just not good lol

Alternatively, you could hash your desired new password and replace the one stored in account.db with it