Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AVWyX2e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3fa2a2cf-5010-40dd-b89b-8e11ca4061d2",
      "cw-4191e390-3b9e-41d8-8358-dd5d11c66b34"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-184e2f8d-bea3-4287-909a-dacd445acff5",
    "manifestId": "https://dam.iuav.it/iuav/containers/AVWyX2e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4191e390-3b9e-41d8-8358-dd5d11c66b34"
  }
}