Incompatible with buddypress 2.5.3

i’ve fix with this: (in function.php)

function wpseo_fix_title_buddypress($title) {
    // Check if we are in a buddypress page
    if ( function_exists( 'buddypress') && ( !empty( buddypress()->displayed_user->id ) || !empty( buddypress()->current_component ) ) )
    {
        $bp_title_parts = bp_modify_document_title_parts();
        // let's rebuild the title here
        $title = $bp_title_parts['title'] . ' ' . $title;
    }
    return $title;
}
add_filter( 'wpseo_title', 'wpseo_fix_title_buddypress');

source: https://buddypress.org/support/topic/bussdypress-title-and-seo-yoast-problem/