Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/A30Vqqe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f88532df-ecd4-4805-8a10-a3ed2949d98f",
      "cw-f9ad75b1-dd8e-4009-bc96-147ae80d5e38"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-40e3af94-8648-49f0-8dc8-9bf67d3d154e",
    "manifestId": "https://dam.iuav.it/iuav/containers/A30Vqqe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f9ad75b1-dd8e-4009-bc96-147ae80d5e38"
  }
}