Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eyK1lBv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b2c08b54-03ba-48c0-ae3d-0a1ed95ec569",
      "cw-e0228524-f8bb-4d3d-b9b1-b0c3e9763c02"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4b454b4d-e5b9-48a3-852e-d54fc4219451",
    "manifestId": "https://dam.iuav.it/iuav/containers/eyK1lBv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e0228524-f8bb-4d3d-b9b1-b0c3e9763c02"
  }
}