Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/LvxzJ3e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-24e75572-600f-4146-8506-2fce13d59fda",
      "cw-f7183357-65e4-4a6e-8783-2f4928f2a192"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-66292940-74fb-49e9-8065-0e8282009aaf",
    "manifestId": "https://dam.iuav.it/iuav/containers/LvxzJ3e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f7183357-65e4-4a6e-8783-2f4928f2a192"
  }
}