After enabling debug
Notice: The called constructor method for WP_Widget in BuddypressFOAF_Widget_Random is deprecated since version 4.3.0! Use __construct()
instead. in /home1/pathayso/public_html/atblogpages/wp-includes/functions.php on line 3891
I would note that the registration problem only exists when using the KLEO theme from Seventh Queen.
And the message left after enabling debug still exists when using a different theme I.E. ForefrontVersion: 1.0.4 By Thomas Usborne.