Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e16xG2Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6ad38dc7-14d8-46ba-8527-9e579d9b70fd",
      "cw-faf184c3-75d5-41ab-8ea2-eb1f9feebfe8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c04a04ff-6ef5-4522-a256-132c724a1cad",
    "manifestId": "https://dam.iuav.it/iuav/containers/e16xG2Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-faf184c3-75d5-41ab-8ea2-eb1f9feebfe8"
  }
}