Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPMwnv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f0817214-b43d-4f7b-ad40-7728c08b3b87",
      "cw-156097ee-5563-4761-b2e3-265e65edf019"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8aaa6ee9-6336-439f-8da7-b0881f60fb4d",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPMwnv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-156097ee-5563-4761-b2e3-265e65edf019"
  }
}