Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/37721",
    "isFetching": false
  },
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    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
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    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8d037268-376a-476d-a290-f5bd8b248ce4",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/37721",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8d9c7c47-7e3a-42f1-a936-721174aed2d5"
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}