SimpleSearch Not Working With GravStrap

Greetings,

I've noticed that the SimpleSearch plugin isn't functioning correctly with the GravStrap theme. It throws a "RuntimeException (404) Page Not Found" (see attachment) on my fresh Skeleton install. I've also checked the Theme's Demo and the only shows 1 result no matter what you search for.

Suggestions?

Screen Shot 2016-03-30 at 2

Could you kindly open an issue at github https://github.com/giansi/gravstrap-theme? Maybe that's the best place to report a bug. :-)