Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vGEjxBe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-490be996-ed09-4ad3-a3cc-f9ed9803de71",
      "cw-25b54b83-ac69-4a9f-bc94-9ac1b135cb00"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8ae495a7-03ad-4a7e-bcef-e4cc952ad2ea",
    "manifestId": "https://dam.iuav.it/iuav/containers/vGEjxBe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-25b54b83-ac69-4a9f-bc94-9ac1b135cb00"
  }
}