Translation doesn't work

Hello,

Please take a look at the attachment:
http://nl.tinypic.com/r/rtgl6e/9

I can’t get this English string translated to dutch.
I’ve used the plugin Loco Translate and translated the string to a dutch line but nothing happends.
I’ve also tried other strings, the are working just fine. I’ve cleaned the cache multiple times, like I said: all the strings translate perfectly except this one.

The website where you can take a look is:

I’m using the Enfold product presentation with a list of products at the advanced layer builder.

Greets Jeen