Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.falck.it/falck/containers/Y9QwyBM/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-aaff97cd-0e3b-4bf2-a280-b46c58c5a9a6",
      "cw-9d273e02-63f7-4489-bf83-3990f66df45a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6cff76df-ee2f-43f0-8019-f2bfd5cd59bd",
    "manifestId": "https://dam.falck.it/falck/containers/Y9QwyBM/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9d273e02-63f7-4489-bf83-3990f66df45a"
  }
}