Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/ZbQzkGe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9ccffbf4-e1d8-4fce-8edb-7877810a46b3",
      "cw-61b44b87-93c9-4862-814c-a660dcd5d313"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-15073172-9a6e-4c49-828a-c6ee140cb443",
    "manifestId": "https://dam.iuav.it/iuav/containers/ZbQzkGe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-61b44b87-93c9-4862-814c-a660dcd5d313"
  }
}