Hi, the problem was not the CB, but a module that comes with oum joomlaart.com the template I'm using Telline III v2, this module also conflicted with the forum Kunema, both Kunema profile page as the only work deactivated after this module.
Thank you for your attention, I will warn personnel of the JoomlArt problem with this module.
I Love CB, congratulations!
Ivan Campos, São Paulo-SP, Brasil