Badarac,

Thank. You for this valuable feedback.

The logged error is because the routne is run where no attrbutes are present to fullfill the internal code. In an effort to remove SBA from modfying so many core files (unfortunately the includes/classes/orders.php file still needs a small modifcation to take advantage of data for future use) it would appear that the low-stock check (and possibly other such sections) needs to verify that the involved product is in fact tracked by SBA. There is a similar check elsewhere in the observer class. Will take a look to see if can suggest applicable code.