Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/EZnXWWA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6a54115f-2a7f-4877-8070-e92f6a8d726e",
      "cw-e503304f-8213-4a3a-8074-990ec97fc56a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b4aeb114-79ff-4ddd-b208-1c0a71a26058",
    "manifestId": "https://dam.iuav.it/iuav/containers/EZnXWWA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e503304f-8213-4a3a-8074-990ec97fc56a"
  }
}