Multisite Blank Page showing and I cannot login


I have had my multi network / multisite setup working quite nicely, when I discovered WPMU DEV, and started over.

But I seem to have a problem, I cannot get my sites up.

I run on Debian Jessie, with NGINX, and my config files seems correct ..

The styles was lost inside my Dashboard, so I reinstalled the plugin, and re-authenticated.

But I seem to have more than one issue, can you guys please help ?