Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/xZjydGe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-068f2a0e-cf17-4caa-a55f-48a0b78763ce",
      "cw-b5ffe5c2-1bc4-4236-9e72-d5e948944f99"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a6520c74-b243-40c6-b94a-5accc04992df",
    "manifestId": "https://dam.iuav.it/iuav/containers/xZjydGe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b5ffe5c2-1bc4-4236-9e72-d5e948944f99"
  }
}