Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/A30rLNe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f9967881-edd3-4142-850d-862a31132bc6",
      "cw-ecdfb1ae-301f-49e8-9b2e-ad4b868be764"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f2a121bc-42d6-4d2a-b3f3-c64197d810d6",
    "manifestId": "https://dam.iuav.it/iuav/containers/A30rLNe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ecdfb1ae-301f-49e8-9b2e-ad4b868be764"
  }
}