Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/ZbQd2Ge/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cc91a8e0-93e6-4106-9daa-73534f210d7a",
      "cw-3e2dced9-52de-4ad2-b1f8-25e22fe6d539"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e3df651e-ac80-4bc0-951f-a65bc4ecb2d1",
    "manifestId": "https://dam.iuav.it/iuav/containers/ZbQd2Ge/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3e2dced9-52de-4ad2-b1f8-25e22fe6d539"
  }
}