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-0c7552b1-cca9-419c-a51c-9530e57bf4b8",
      "cw-ba79d378-7c52-4cde-aee2-d9e1a26b078d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ea2dbec5-eb1b-4347-984b-7879be1f3bd9",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9qwwme/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ba79d378-7c52-4cde-aee2-d9e1a26b078d"
  }
}