For some reason there is Page Not Found error when you try to view the actual image, for example:

http://peoplearea.com/s/bx_timeline_photos/6sxs5n2je6bgcx6jgaupvyxug2ecpkbf.jpg

I suspect that it's old site which was updated to the newer version, or .htaccess file left from old version.

Please try to make sure that your .htaccess file in your UNA root folder match this one:

https://raw.githubusercontent.com/unaio/una/master/.htaccess