Superuser creation error in Part-01 Django Models Views and Testing

[UnityTAW]

The code in Part-01 Django Models Views and Testing/Part-1 Initial/store/admin.py produces the following error when attempting to create a superuser:

<class 'store.admin.ProductAdmin'>: (admin.E116) The value of 'list_filter[1]' refers to 'is_active', which does not refer to a Field.