Error when i kill someone

so for some reason when i kill someone it doesn’t happen all the time but it has happened when i killed someone by landing on their head and when i got a head shot on them with a magnum i don’t know what is going on

error is

[ERROR] LuaCmd:1: ')' expected near 's'
  1. unknown - LuaCmd:0

Somehow I get the same error, what addons do you use?

[editline]28th January 2014[/editline]

It happens when you get killed by someone who has ’ in their name.

um i have too many to list lol