This usually manifests as the game failing to launch in Steam's offline mode, often accompanied by a "Not Updated" error status or a prompt to go online.

Reach out to the seller's automated bot or customer service to get a temporary login window.

: Denuvo only allows a limited number of activations (typically 5) every 24 hours. If you are using a shared account for offline activation, you may be blocked if too many people tried to activate at once. How to Fix It