Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPDzov/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-666e2abc-dbbe-4e93-a8e7-3193e844d753",
      "cw-64ef3583-8cf2-4f32-8d09-1bc7453c7c44"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7fcc7066-26f6-4337-b420-bfaaff430a55",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPDzov/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-64ef3583-8cf2-4f32-8d09-1bc7453c7c44"
  }
}