CSS not loading properly

Hello,

I am using wordpress 4.3.1 with the free tint theme. I added the GC Testimonials as a widget in de widget 1 area. Everything works fine besides 2 things:

– It only shows 1 testimonial (i made 2 as a test) it doesnt seem to cycle.
– CSS is not showing. It looks basic text with a image.

Can someone tell me how to resolve this issue? Perhaps de tint css is making the plugin not show properly but i dont know how to fix this.

P.S: Website is on my localhost so i cant show you guys..

Greets,
Jasper.

https://wordpress.org/plugins/gc-testimonials/