Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKjdje/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-62b736e6-3898-40b9-a576-97fe3b4e795d",
      "cw-20e08173-2433-45da-8f2a-ba2d4e5c064f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8498ef97-58c5-4b63-8bf0-8c7d1abd5e1e",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKjdje/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-20e08173-2433-45da-8f2a-ba2d4e5c064f"
  }
}