[Plugin: NextGEN Gallery] Ajax fails the second time and link changes

When I go to the next page on images, it works.
When I select a second time.. the whole gallery dissapears.
I checked with Firebug and the code is gone.

The link it goes to the first time is:

https://localhost/?aanbod=a-ronto&nggpage=2

The second time the link changes to this:

https://localhost/index.php?callback=ngg-ajax&p=133&galleryid=1&nggpage=3&type=gallery