Question Categorie page does not display correctly after installing 1.0.9 Kunena?

I upgraded from fireboard to Kunena 1.0.9 and everything worked fine at first. I then changed some of the forum categories around and then I went to the categories page and I got this error:

Fatal error: Class 'smile' not found in /home/content/z/z/z/myozarkhealthinc/html/components/com_kunena/template/default/listcat.php on line 231

It does not display any content just the error and the avatar and besides that its just a white screen. It does this in both IE 7,8 and Firefox. Any suggestions on how to fix this issue?

This is a known bug in some environments and has already been fixed for Kunena 1.0.10. You can try to downgrade Kunena to 1.0.8 or back to FireBoard.

I'm having the same problem, but I am using 1.5.9a... I can't downgrade because you don't offer previous versions of kunena for download. I can't find them anyway. Is there a quick fix?

Fatal error: Class 'smile' not found in /homepages/31/d274883620/htdocs/components/com_kunena/template/default/listcat.php on line 142

here's the page: signongaming.com/index.php?option=com_ku...temid=0&func=listcat

My friend fixed it... he said you need to check your PHP / JS compatibility.