Hello!
It seems that GP Child Theme is causing conflicts with:
CSS not displaying correctly on all the site
Beaver Builder Plugin
Simple CSS plugin
WordPress not being able to display generate a new password and thus not able to generate a new user
Login page not displaying correctly
I activated and deactivated plugins and the pattern I found was that once I deactivated the GP Theme I was able to access Simple CSS correctly, BB Plugin, create a new user, and login page showing correctly.
Thank you so much for the help.