Console Error Message

I used the following, http://www.garagegames.com/index.php?sec=mg&mod=resource&page=view&qid=6742 , and was able to get Kork to fight back, but when I kill Kork, he doesn't respawn even though I have respawn set to true. Here is the console error message I get as well, starter.fps/server/scripts/player.cs (810): Unable to find object: '' attempting to call function 'onDeath'.

Can anyone offer any pointers on how to fix this?

Thanks!