Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dAMY6gA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-667f25a0-5776-4394-ac4f-74ad9a0a2063",
      "cw-e4105610-f810-4ffd-8038-d043ac3b4c4a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6513cfa2-13be-4463-a34b-486818526519",
    "manifestId": "https://dam.iuav.it/iuav/containers/dAMY6gA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e4105610-f810-4ffd-8038-d043ac3b4c4a"
  }
}