I need help resetting my password or getting back into my account. I’m not sure how to use this site. I’m just trying to reset my password on a site called Physo Mail or something, but it keeps sending me to some kind of forum which is here instead.

my discord is @hn1d
sbdy plz help
This has nothing to do with Mail-in-a-Box, which is a self-hosted mail server suite, not a platform for general questions about issues with arbitrary email providers 
However, I checked the email domain on your screenshot, abuse.cx, and it redirects to https://psycho.email/. They seem to have a Discord, so I suggest you ask your question there.