Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvLmKQA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-939f013a-f532-44a2-a8c7-06d69b3429e2",
      "cw-4f3daa22-7b80-4be9-b14e-a4aa3c9f0041"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2af30ed9-3515-4ff2-9ca9-9c5d5b13c431",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvLmKQA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4f3daa22-7b80-4be9-b14e-a4aa3c9f0041"
  }
}