Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/69353",
    "isFetching": false
  },
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    "id": "window-e483a5c4-3b88-4c94-8f41-b55766afe3fd",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/69353",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
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    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-056dc77c-7520-4c6a-8f4b-f51635b9bb23"
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}