Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Be5X30A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-43ae703a-7e97-47ff-946c-4f3e3c5b83de",
      "cw-596c1c69-e591-4649-935c-1c58a88116ed"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6b4a6844-b11e-494b-8618-fa38e12427fc",
    "manifestId": "https://dam.iuav.it/iuav/containers/Be5X30A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-596c1c69-e591-4649-935c-1c58a88116ed"
  }
}