TypeError: Failed to fetch

{
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    "error": "TypeError: Failed to fetch",
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    "isFetching": false
  },
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    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
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    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d05710ea-f056-476e-a2ef-b9d46992f48e",
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    "loadedManifest": "https://album.atlantahistorycenter.com/iiif/2/Wilson:851/manifest.json",
    "allowFullscreen": true,
    "allowMaximize": false
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}