Hello

I am getting an error on a fresh install of v1.3.8a when trying to use the shipping estimator without being logged in:

Warning: Attempt to assign property of non-object in includes/modules/shipping_estimator.php on line 107

Warning: Attempt to assign property of non-object in includes/modules/shipping_estimator.php on line 124

I have the usps and fedex shipping modules installed on the cart. Can anyone please help me figure out what is causing these errors?