Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e16lb1Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0e159cbb-0b90-47b3-bd0f-210b7c5f4b27",
      "cw-555c6015-637d-4cdf-98f3-2d8c6923d15e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c543128a-66b8-480a-8ee6-eea2f8c5cd76",
    "manifestId": "https://dam.iuav.it/iuav/containers/e16lb1Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-555c6015-637d-4cdf-98f3-2d8c6923d15e"
  }
}