Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/nv7kg0v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fd18c36b-7481-4ef8-b613-0eadb215a12f",
      "cw-9deb3333-66ab-4c89-a560-e040a794eeb2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-79c5b124-c099-48c4-b5e6-5fcaadefe384",
    "manifestId": "https://dam.iuav.it/iuav/containers/nv7kg0v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9deb3333-66ab-4c89-a560-e040a794eeb2"
  }
}