Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e9qwwme/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a3c63e17-dd7c-4350-9c8c-63dcf8dbfd52",
      "cw-9d9b96cd-95ce-4803-bd50-e5155fe14f6e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-55a67fd7-160e-4058-b675-56fd4ec504d3",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9qwwme/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9d9b96cd-95ce-4803-bd50-e5155fe14f6e"
  }
}