Well, as you can read, i have a problem with my Warlock where i can't have any title. So far i should have, at least, the PvP ones but not even that. With my others 2 PJ (Priest and Druid) i have them i can switch and choose between them without a problem but with the Warlock there is non. Is this a bug, a problem or something like that? Is there a way to fix it?
If with PvP titles you mean the ones you get at specific amount of honorable kills, those are not enabled. And from the post it seems like you are not sure if you have any other titles. If you can't select titles it probably means you don't have any.