problems with permissions with uksort()

[kuroi]

I just installed cutenews.ru on my site using the mySQL option. I also installed the phpbb3 integration. Everything works perfectly with one exception. When I click on the users button at top, the page loads but has a warning in the middle of the page. The warning says:

Premissions
Warning: uksort() [function.uksort]: Array was modified by the user comparison function in /home/.oblong/kuroi/kuroi.jascii.org/news/show_users.php on line 100

So that you can see exactly what's happening, I've uploaded a screencap to:
http://www.kuroigames.com/temp/desktop.jpg

I really have no idea what could be causing this or what to do in order to fix this problem... I would greatly appreciate if anyone could offer me any help with this.

Thank you so much~

[Hawk]

Have you used any plugins or made modifications to your default installation?