Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKq9De/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-55384ebd-6806-4fc0-8c98-a1b228472f0b",
      "cw-25037738-5582-4892-b7b8-dad949878aa2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c0dcd4e2-aae7-4bf0-8619-575773ded167",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKq9De/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-25037738-5582-4892-b7b8-dad949878aa2"
  }
}