Copy/paste/overwrite your Kurns files from your backed-up default Titanium install to your P99 directory. Try again. If you're able to log into the character, but not a specific zone, its not the UI files that are corrupt/missing, its the zone files.
Copy/paste/overwrite these files:
kurn.s3d
kurn_chr.s3d
kurn_obj.s3d
kurn_sndbnk.eff
kurn_sounds.eff
*List pulled from the
EQLite guide.