CRE Loaded 6.2.10 site with stock PayPal module enabled.
Customer can purchase product and pay by PayPal. But customer gets a page showing “You are not authorized to access this order” when customer clicks the “Order Printable” button upon returning from PayPal, due to the order ID is missing from the URL to print the order. Also it shows "No PayPal Transaction Information Available ()" in PayPal Transaction Activity box when viewing the PayPal order on Order Status page.
This should be a quick fix. Very experienced CRE Loaded expert only!