Expired Redirect Has No Destination

Check the saved destination

Edit the expired item and review Redirect settings.

Custom URL

If you use a Custom URL, verify that the field contains a complete valid URL.

Existing content

If you selected Existing content, verify that the target still exists and has a usable permalink.

How the plugin behaves with no destination

If the plugin cannot resolve either a Custom URL or an Existing content permalink, it has no destination to send the visitor to and therefore cannot perform the redirect.

Fix

Add a valid destination, save the content, and clear any relevant cache before testing again.