Several of the secondary partial views on the product page do not properly trap for a product with no assigned category (aka orphan product).

For example, /Controllers/ProductController.cs ProductTabs() just loads whatever value PageHelper.GetCategoryId() returns without checking for the null category object. These routines should be validating all data loaded against null reference.

This also floods the error log with gigantic MVC error messages as bots continually hit orphaned items throughout each day.