Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/RABOWze/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-aadc9175-e35e-4c40-99da-070212021710",
      "cw-2f53bf50-b72e-443d-be06-50b73345ca80"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e7bab2cf-36d8-43b4-bab5-e562b34b6aab",
    "manifestId": "https://dam.iuav.it/iuav/containers/RABOWze/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2f53bf50-b72e-443d-be06-50b73345ca80"
  }
}