I downloaded [mvasilkov/systematize](https://github.com/mvasilkov/systematize/blob/master/README.md) latest release and tried to input `npm install —save systematize` in terminal but got this:`⸨░░░░░░░░░░░░░░░░░░⸩ ⠇ rollbackFailedOptional: verb npm-session 5b64df302bdd24b`
) and font didn’t change to SF when I open websites on safari.
So I wonder is there any following steps I can take.