Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eg8XMzZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e2d9caec-7794-40de-801b-8ab3a02f6dd4",
      "cw-c3eecfb5-d5c0-4916-93c6-1106416a5177"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5a29e283-e12c-4cf7-ab51-d1cce0efcede",
    "manifestId": "https://dam.iuav.it/iuav/containers/eg8XMzZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c3eecfb5-d5c0-4916-93c6-1106416a5177"
  }
}