…/x/#/options or even …/x gives me 404 page:
!
File not found (404 error)
If you think what you’re looking for should be here, please contact the site owner.
I just reinstalled the theme to no effect.
This all just appeared as I tried to edit site today. I had worked on it two days ago after first installing the theme. At the end of that day, I password protected the site. I have since removed that and still get the error. Nothing else occurred between then and now. Only plugin active is cornerstone.