Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vDWOL3Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9cee9ee4-3bd5-40c0-8804-982cfb299344",
      "cw-10448c92-6c01-45ed-8c24-f48429622461"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-05165a5e-84d2-49e8-bc42-bb0d5416c570",
    "manifestId": "https://dam.iuav.it/iuav/containers/vDWOL3Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-10448c92-6c01-45ed-8c24-f48429622461"
  }
}