MINIFICATION & SNAPSHOT PRO: I broke my clients website

I wanted to use the MINIFICATION plugin. I saw that it said to do each individually... but I was lazy and decided to use the backup plugin (SNAPSHOT PRO) to back up the entire site first and see if the MINIFICATION didn't break anything, if it did I would just restore the back-up. It did break something so I went to restore the backup, received a back-up restore complete message... and then went to check the site. It is completely blank.

Attached are the browser error message.

Ever heard of knowing just enough to be dangerous? Yes... THAT IS ME.