l find solution : go in plug in Community Builder System plugin after in ' Parse Urls' put deaseable in the 1er fiel Redirect Url...
l read this post for find help :
www.joomlapolis.com/forum/153-professional-member-support/230113-cb-login-required-how-other-component-can-use-this-login#265895
and this texte :
By default CB will redirect Joomla login URLs to CB login URLs. This is controlled by "System - Community Builder". It can also rewrite those URLs if enabled in its parameters. This should cause all those login URLs, forms, and redirects to point to CB instead of Joomla. I can't guarantee this will be compatible with all 3rd party extensions, sorry. I recommend disabling all 3rd party login/registration functionality when possible.