Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74359",
    "isFetching": false
  },
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    "companionAreaOpen": true,
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    "highlightAllAnnotations": false,
    "id": "window-14fe1d94-2975-47bf-8d74-9bb15e61051f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74359",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e85fe9ee-c607-436a-9d97-d20459316e2a"
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}