Trying to add offline player to friends gives 'no character named X'

[Kevkof]

Summary: Trying to add offline player to friends gives 'no character named X'
 
Description: When you try to add a player to your friendslist that isn't online at that moment in time it gives you an incorrect error message.
 
Steps to reproduce:
 - 1: Launch the game and join any instance
 - 2: Attempt to add a player who's offline to your friendslist
 - 3: Notice the error message
 
How many times have you recreated this bug: 5/5

Results: It shows a error: 


Expected results: There should be an appropriate error:

'<Name of person>' isn't currently online