Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvLLEyv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-799d91f1-43ee-4ec3-a3bc-7ffba2d7c768",
      "cw-6b1036c6-7cdf-4199-95bb-e3f025887bb9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-46569fba-4d2e-4fb6-aadf-6ce513f9aad2",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvLLEyv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6b1036c6-7cdf-4199-95bb-e3f025887bb9"
  }
}