File no longer available
Someone opened /d/{token} with a grant that still looks valid, but the underlying file is gone (deleted, trashed, inactive, or missing storage path).
Why this happens
The link was minted when the file existed; later the row was removed or deactivated. Distinct from File not found at mint time (file already missing when Create download link ran).
Diagnose and fix
1. Restore the file from trash if possible, or re-upload and share a new link.
2. Check storage node health if the row exists but storagePath is empty.
3. Old grants cannot revive a deleted file — mint again after restore.
4. Not a plan/bandwidth gate.