Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/RABOKye/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3c90ca54-230d-4898-8985-0526f28a8059",
      "cw-d0b8043b-0ecd-4e0f-b362-fc730fb4b16a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b05fbb05-dd4d-4cdb-bb26-a8742db06b81",
    "manifestId": "https://dam.iuav.it/iuav/containers/RABOKye/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d0b8043b-0ecd-4e0f-b362-fc730fb4b16a"
  }
}