Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/A30Ywxe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1701b8e2-aede-45a7-86f6-4a263c176882",
      "cw-4a0b4410-73c5-475a-9d25-e8be5d33658a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-06ba2e6d-04f6-4953-8786-85791e4365d2",
    "manifestId": "https://dam.iuav.it/iuav/containers/A30Ywxe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4a0b4410-73c5-475a-9d25-e8be5d33658a"
  }
}