Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Ye0Kg5A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-85751a86-fc54-4493-88bd-f35209eedef0",
      "cw-623923bd-0ee2-4933-8f92-ff304e61fedd"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7976fe24-d6f8-4e03-8221-7dde13404985",
    "manifestId": "https://dam.iuav.it/iuav/containers/Ye0Kg5A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-623923bd-0ee2-4933-8f92-ff304e61fedd"
  }
}