Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2AORQwv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d7e36ba5-bb17-4014-b308-234e3ab4cc86",
      "cw-7492c596-beee-44ed-a2ae-30e58cf18910"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ab1e1c42-a6d5-4141-a432-5a7a3f467cac",
    "manifestId": "https://dam.iuav.it/iuav/containers/2AORQwv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7492c596-beee-44ed-a2ae-30e58cf18910"
  }
}