Mirador Viewer

TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11021941/manifest",
    "isFetching": false
  },
  "window": {
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    "companionAreaOpen": true,
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    "draggingEnabled": true,
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    "id": "window-38ee49d1-b1d2-48cd-8c8d-4daa3d44137b",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11021941/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8c2789f2-5b08-4dfd-834e-b376a632bfa2",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11021941/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}