Mirador viewer

TypeError: Failed to fetch
{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.sma.unibo.it/smaunibo/containers/JnR3EvQ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e4c2a44b-9b19-4519-a61b-f711aab08b0b",
      "cw-9aa1ca80-607c-4b2e-a5f2-8016879497b5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f525aaa8-1a1b-4d4a-bb12-9e183889eacc",
    "manifestId": "https://dam.sma.unibo.it/smaunibo/containers/JnR3EvQ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9aa1ca80-607c-4b2e-a5f2-8016879497b5"
  }
}
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