Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Akrzo7v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b5fcb77c-b874-435c-abac-19de65fcae66",
      "cw-6187e5ed-f847-443f-b26d-57c05773451d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7c886c44-c1ce-44b5-90c2-eeace8aff827",
    "manifestId": "https://dam.iuav.it/iuav/containers/Akrzo7v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6187e5ed-f847-443f-b26d-57c05773451d"
  }
}