Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e50dkXA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c336e0b0-9697-4836-b419-0c237969b0db",
      "cw-f44b0658-a777-4e7f-9283-2c4676f94ee2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0b7fabfd-67a3-4b04-86fc-6fb25ebaf352",
    "manifestId": "https://dam.iuav.it/iuav/containers/e50dkXA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f44b0658-a777-4e7f-9283-2c4676f94ee2"
  }
}