Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeW3wYe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-da1a69be-feae-4ce3-a756-be56b011cc56",
      "cw-bf9f6587-da05-4e12-8c99-74f2288b9354"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ac18fbdd-129e-4ccd-9303-84d78964c006",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeW3wYe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-bf9f6587-da05-4e12-8c99-74f2288b9354"
  }
}