Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vaXOBEZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-69e94729-3df6-4b96-8108-1b54334c9c6d",
      "cw-37da751f-c562-4a0a-91c9-9c1244effa57"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bdf1d4b2-0253-4ca5-806b-240c1d41faa5",
    "manifestId": "https://dam.iuav.it/iuav/containers/vaXOBEZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-37da751f-c562-4a0a-91c9-9c1244effa57"
  }
}