Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wArOzpe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-87f68fa6-bebf-419e-83ae-b19c66bbce9a",
      "cw-626c1dce-1a07-45bd-aa7b-26147e7fab62"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5b00593f-fe73-4b62-b2ff-4e247e39f1cf",
    "manifestId": "https://dam.iuav.it/iuav/containers/wArOzpe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-626c1dce-1a07-45bd-aa7b-26147e7fab62"
  }
}