trying to add someone after they have friended me gives error

if someone as already sent a friend request, and i try to add them as a friend from their page, it redirects you to http://pownce.com/request_friend/user...
if i hit "yep, confirm friend" it gives me an error 500
not really an big issue, but i thought i would point it out.
thanks gals and guys! great work so far!!