[Plugin: NextGEN Gallery] NextGen interfering with Google?

Hi. My site used to show up on Google, but now none of the content on my site shows up on Google at all- not even keywords. You can google the URL of my site, but all you get is a link to http://www.jonathondalton.com/index.php?callback=ngg-ajax and the only thing that shows up is the phrase “insufficient parameters.” The “ngg” leads me to believe this is a problem with NextGen and that somehow Google isn’t getting any further through the code of my site than the reference to NGG in the header. The site itself works fine apart from that.

Any idea how I can fix this?