Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/3731500",
    "isFetching": false
  },
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    "collectionIndex": 0,
    "companionAreaOpen": true,
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    ],
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    "highlightAllAnnotations": false,
    "id": "window-03bf6e28-01bc-47c7-acf4-6d0b5807f0c4",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/3731500",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f459b00c-d88f-467d-b0d3-e64df88700a9"
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}