No, once reported lost or stolen, your physical Green Dot card is no longer available for use.
However, you can access existing funds on your account using the Green Dot app to pick up cash at Walmart. Visit the Manage Card section in the app and follow the prompts to generate a time-sensitive barcode that allows you access to pick up cash at Walmart. There is a $3 service fee. For more information, please see FAQs on how to access funds if your card is lost or stolen.