Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68292",
    "isFetching": false
  },
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    "companionAreaOpen": true,
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    ],
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    "id": "window-4c8b3a70-6c44-4a31-bb1e-416c658a8d0d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68292",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5b585e79-df14-4274-aa72-158d733d5728"
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}