It is already shut down.
This explains it.
You can continue to use installed apps and games on a Windows 8.1 PC after January 10, 2023. You will not be able to make any new app purchases or any in-app purchases after January 10, 2023. Installed apps and games will receive publisher updates through June 30, 2023 (or later if support is provided independently by the developer). After updates are no longer available, app quality and usability may be degraded. Customers who move to a Windows 10 or Windows 11 PC can use and reinstall previously purchased apps and games on their new or upgraded PC.