Pagination doesn't work

At Directory > Settings > General >
I've Check "display at top of page" and "display at bottom of page".
Also "Pagination Range" has been set at 2.

If you click here :
http://arpazw.gr/listings-category/%CF%80%CE%B1%CF%84%CE%AC%CF%84%CE%B5%CF%82/
you can see that there are 5 items and there is no pagination...

Can you help me?

PS : I also change the default Directory theme, but nothing happens...