Server is already in trash
Admin server delete (non-permanent) returned 400 Server is already in trash. because deletedAt is already set.
Why this happens
Double trash attempt. Use restore or permanent purge from the Trash tab instead.
Diagnose and fix
1. Open Admin → Servers → Trash.
2. Restore, or permanently delete (after clearing files if required).
3. See Move this server to trash before permanent deletion for the opposite order error.
4. See Server trash, restore, purge.