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TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11191604/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e793d617-0c53-4102-a2a6-9ff6b524686b",
      "cw-807d4ba1-cc86-423f-9fe7-438ec2b8c4d5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f143d1c3-9862-4018-9663-2433eb5f1026",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11191604/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-807d4ba1-cc86-423f-9fe7-438ec2b8c4d5",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb11191604/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}