A server with this id is in trash — restore or permanently delete it first
Admin create server returned 409 because that id already belongs to a trashed server.
Why this happens
Id reuse while a soft-deleted row still exists. Distinct from This id is reserved for the built-in local storage server.
Diagnose and fix
1. Servers → Trash: restore the server, or permanently delete it.
2. Then create again (or just restore and reuse the existing row).
3. See This server is in trash — restore it or delete permanently from the Trash tab.
4. See Server trash, restore, purge.