Server is not in trash
Admin restore or permanent purge returned 400 Server is not in trash. because the server is still active (deletedAt null). Same rule as Move this server to trash before permanent deletion.
Why this happens
Two-step lifecycle: trash first, then restore or purge.
Diagnose and fix
1. Soft-delete (move to trash) first.
2. Then restore or permanent delete from Trash.
3. See This server still has active files — transfer or delete them before permanent purge if purge is blocked by files.
4. See Server trash, restore, purge.