Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Bey0mdA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-07300509-591e-4d7c-ab67-8747d1ea55f5",
      "cw-487cf1cc-dede-4043-8991-9ab0343f2013"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c837a035-85b2-4c2c-a364-ef37775e5821",
    "manifestId": "https://dam.iuav.it/iuav/containers/Bey0mdA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-487cf1cc-dede-4043-8991-9ab0343f2013"
  }
}