Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eyK9amv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b5dbbfe2-f16e-4ef0-9ea4-2e871407d642",
      "cw-15e44623-04b3-4451-8f8d-c49dd83d3a45"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fad01ea2-2e23-4f6e-9d28-ff81779af429",
    "manifestId": "https://dam.iuav.it/iuav/containers/eyK9amv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-15e44623-04b3-4451-8f8d-c49dd83d3a45"
  }
}