Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/JvaY2ov/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-73071622-15fd-4c3f-906b-ecffc2993927",
      "cw-6e63caf8-c4fc-4f2c-8bc6-c265ce1a87e9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d29d1f61-7dcb-4499-9375-f2fb7ad9c408",
    "manifestId": "https://dam.iuav.it/iuav/containers/JvaY2ov/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6e63caf8-c4fc-4f2c-8bc6-c265ce1a87e9"
  }
}