Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AB07YEZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-afd9d4f6-26b9-4e52-bceb-5d37d5a4accf",
      "cw-ba76266a-0b89-4757-b9ac-ce90b7a9627c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a0672bbb-390e-4c50-875b-37f2aa0afa2c",
    "manifestId": "https://dam.iuav.it/iuav/containers/AB07YEZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ba76266a-0b89-4757-b9ac-ce90b7a9627c"
  }
}