BuddyPress.org

Hi,
i’ve been looking around, but i can’t figure why i have this problem.
When i try to complete my registration i come back to the home screen, instead of going to the “activate” page. I checked on my buddypress options and the pages for register and activate are well indicated. I even tried the plugin “BP Disable Activation” but i always come back to the home screen and the user profile is not created.

I’m on wordpress 4.2.2 with Buddypress V 2.2.3.1 .
The Them is KLEO (the last version)
all plugins are up to date :

Allow PHP in Posts and Pages
Bowe Codes
BP Limit Group Membership
Brozzme Cookie notification
BuddyPress
BuddyPress Group Plus
BuddyPress Groups Extras
Custom Contact Forms
K Elements
Open external links in a new window
Postman SMTP (just for a test)
Revolution Slider
rtMedia for WordPress, BuddyPress and bbPress
Taxonomy Metadata
WPBakery Visual Composer
WP Maintenance Mode
WP Mobile Detect

I tried to disable all the plugins, but still the same.
When i try to register, i’m on another navigator and not logged on wordpress.
Can some one help me please, i’m lost.

Thanks a lot.