It's a character-only issue, don't waste time uninstalling your game, you'll only give yourself a headache. Make sure you have the latest Defiler (3.3.4 at the time of this post), and send that character's player.chr file to
webmaster@demortex.com, and I'll see about fixing it for you.
P.S. Please post any troubles you may have over on my forums, I'll see it much faster.
Soul