Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Akrpl7v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fbf864c0-d157-4851-a63e-fed328cb3693",
      "cw-dcb83579-ac1c-423c-a09c-312265b341b5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c0b27b67-34bd-4416-814d-49f6047f78d9",
    "manifestId": "https://dam.iuav.it/iuav/containers/Akrpl7v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dcb83579-ac1c-423c-a09c-312265b341b5"
  }
}