Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Pe18baA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-44946966-83c7-48ef-bc24-525b86ad4ef8",
      "cw-4308d389-b545-4d5a-aa5d-470c293c302b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c3774335-2cd1-4f4e-b9d1-074307b62ece",
    "manifestId": "https://dam.iuav.it/iuav/containers/Pe18baA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4308d389-b545-4d5a-aa5d-470c293c302b"
  }
}