Activity problem bp Business theme

Hi, I installed the theme Business without any problem but when I click Activity I get this error.

Fatal error: Call to undefined function get_sitestats() in /home2/botaniqo/public_html/wp-content/themes/bp-business/activity/index.php on line 32

I already tried to:
Deactivate all plugins, just living the buddypress one.
Use default preset style.

maybe it has to be with something with the configuration
Settings-Reading- front page displays??? A static page???

Appearance- Theme options- Community page settings..???

http://botaniq.org/activity/

Thanks a lot for any help.