Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eyK9amv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-18f2dc89-3522-4d12-99cc-70e3184048ce",
      "cw-3fd37ed2-34ec-46c2-a384-7bc065d5b03e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0b648af9-7d86-47ed-b516-8bdaf43d6281",
    "manifestId": "https://dam.iuav.it/iuav/containers/eyK9amv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3fd37ed2-34ec-46c2-a384-7bc065d5b03e"
  }
}