Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AwqMkyZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d74f5365-704b-4c2c-8cd6-746a9eb48d90",
      "cw-64f12a19-7074-4de8-9527-ab2451d94c8f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a40118be-04e8-4bba-a662-22773d580bb7",
    "manifestId": "https://dam.iuav.it/iuav/containers/AwqMkyZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-64f12a19-7074-4de8-9527-ab2451d94c8f"
  }
}