Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Ye0Qa5Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ebd536c0-5031-4507-bce2-ff4af29fedda",
      "cw-5f3f11b6-400b-49ef-b9a6-baae3aa6b353"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0f82801d-af07-498d-a9c1-0fbdba46ec61",
    "manifestId": "https://dam.iuav.it/iuav/containers/Ye0Qa5Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5f3f11b6-400b-49ef-b9a6-baae3aa6b353"
  }
}