Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vX5q3yA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-806fd8cb-07df-4d97-8988-623a55f25513",
      "cw-6e3873a3-41f0-4acb-b488-c3216f47db33"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-83e7d792-cf7a-4753-a9bc-8998a04eeba7",
    "manifestId": "https://dam.iuav.it/iuav/containers/vX5q3yA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6e3873a3-41f0-4acb-b488-c3216f47db33"
  }
}