Theme Pinbin Pictures In Posts Don't Show

I started using ‘Pinbin’ theme which is supported. But there’s a problem, thumbnails and images in posts simply don’t show… I don’t know what’s wrong, on the frontpage images are missing but on the individual post it appears. But I’d like to use ‘Pinbin’.

Searched through the forum for an awnser,deactivated plugins and reinstalled the theme.

But still no succes.