Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/JvaE0Rv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-91b08e80-77b7-445e-af94-2d883e9372cf",
      "cw-17c0cb9d-a3a3-49ba-9daf-ce9f01c107d0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f406a208-bf26-411c-aa8d-2ed75f7ddb31",
    "manifestId": "https://dam.iuav.it/iuav/containers/JvaE0Rv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-17c0cb9d-a3a3-49ba-9daf-ce9f01c107d0"
  }
}