Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eyKjLrv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2aa74666-52ee-47aa-8542-cb91a31f1e19",
      "cw-a751951b-d61b-4c51-b60c-6fd0ce0682e9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-315a8f64-e75c-490d-b7e6-56f7152fe617",
    "manifestId": "https://dam.iuav.it/iuav/containers/eyKjLrv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a751951b-d61b-4c51-b60c-6fd0ce0682e9"
  }
}