Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AVWBoje/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9fb612c6-672f-45ea-bf2b-a61b760ade28",
      "cw-79aba279-7187-4c0b-9e2e-72f7eeb56eec"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-72380ece-17e8-4986-acc2-1a2b6d04cbad",
    "manifestId": "https://dam.iuav.it/iuav/containers/AVWBoje/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-79aba279-7187-4c0b-9e2e-72f7eeb56eec"
  }
}