Custompress demo site: click on tags do not work

Hello,
I take a look on the demo custompress site: http://custompress.co.
If i clik on a tag below the image in a plant detail like http://custompress.co/plant/aster/, i do not have any result.

I should have a least One result.

Is it a Custompress bug or a bug in the demo site ?

Thank you
Dimitri