BuddyPress.org

Hi
Every time someone does something to cause a notification to happen such as commenting or sending a message an error occurs but still shows the notification, this is the error when I send a private message.

Fatal error: Call to undefined function bp_get_settings_slug() in /hermes/bosweb26d/b1249/ipg.krugersightingscom/wp-content/plugins/buddypress/bp-messages/bp-messages-notifications.php on line 20

Please help.
I’m on the latest version on WP and BP