Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/70876",
    "isFetching": false
  },
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    "companionAreaOpen": true,
    "companionWindowIds": [
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    "highlightAllAnnotations": false,
    "id": "window-eef64037-93e5-4563-96c4-e5db23c9e1a0",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/70876",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dde48ff1-f1d0-4a2d-ab82-7ae8433b9fd8"
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}