BuddyPress.org

It works now
I use the code from @Travel-Junkie
by Functions:
function sh_walled_garden()
{
global $bp;

if ( bp_is_register_page() || bp_is_activation_page() )
return;

if( ! is_user_logged_in() )
bp_core_redirect( $bp->root_domain .’/’. BP_REGISTER_SLUG );
}
add_action( ‘get_header’, ‘sh_walled_garden’ );

and by header:
do_action( ‘sh_walled_garden’ )

Now I gonna make some changes by Register.

Thanks a lot @ray and @Travel-Junkie