The applications included in an Object Desktop subscription are only available to current subscribers.
If your subscription has expired, then you will need to renew to regain access to the applications you seek to utilize.
If you backed up the installers prior to your subscription expiring or have installation/installer, then you may continue to use them,
If you need to renew, you can do so at https://www.stardock.com/products/odnt/odrenew.asp
After you renew, you can re-download and reinstall your applications from https://store.stardock.com/myaccount/products or use Stardock Central (currently in beta but available at https://www.stardock.com/products/stardockcentral/ ).