Didnt have it, but 1st things i'd check are:
1. did he send you those addons? if not, and you downloaded yourself, make sure you downloaded the same/latest version.
2. other addons might affect that too, try enabling PFUI only, see if you still get those errors.
3. are you both using the exact same game client version?
Thats all the help i can offer right now
if you'll provide more information i can attempt to help farther.