WordPress theme not loading and no admin panel

Hey first post here,

I am helping my club on campus run a WordPress site. After logging in and trying to update some plugins, the site does not load with the theme, and I am unable to access my admin panel. I have already tried disabling the themes and plugins by renaming them through FileZilla, but that does not prove to be very successful. Any help would be greatly appreciated.

The website is http://bay.sdsu.edu/