Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPONwv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-57b2f208-50df-413b-881c-e4e4fd44ea4a",
      "cw-970612e0-9272-48b4-a099-a30992e8fea5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1bf4bd89-440b-4571-8e28-4b433124175e",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPONwv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-970612e0-9272-48b4-a099-a30992e8fea5"
  }
}