Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJOLLe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8f919528-36e8-418a-aa00-8375c431b0ce",
      "cw-af4648c0-309e-4c92-a1a0-b8fd10139994"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a909a525-bfb7-4ac5-85cd-643e3b8028eb",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJOLLe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-af4648c0-309e-4c92-a1a0-b8fd10139994"
  }
}