Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/BeyEGde/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b452ed8a-d09b-4a8b-aa02-d586f3589c74",
      "cw-6d6f2bc9-cc6c-4a54-910a-d183e20a833f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f55a0be7-ec3b-4170-abc3-82663d41c675",
    "manifestId": "https://dam.iuav.it/iuav/containers/BeyEGde/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6d6f2bc9-cc6c-4a54-910a-d183e20a833f"
  }
}