Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.falck.it/falck/containers/BR44bxR/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-029efd42-21f3-41cd-9c1b-4982421b2e90",
      "cw-4d8f0895-cd2e-48e0-800a-13c3d90cd34e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0bb66d23-11fd-4fd9-9b03-8a4509c2b24f",
    "manifestId": "https://dam.falck.it/falck/containers/BR44bxR/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d8f0895-cd2e-48e0-800a-13c3d90cd34e"
  }
}