Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eyKyWKv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a54028ac-4c7c-4b48-9922-b2eabad76667",
      "cw-81da5dd6-f103-456c-935a-e63867b19875"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fa0988e1-a0a8-453e-ba2b-21ea885dccad",
    "manifestId": "https://dam.iuav.it/iuav/containers/eyKyWKv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-81da5dd6-f103-456c-935a-e63867b19875"
  }
}