Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/53219",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-adb057e7-d969-44ad-8bc1-c9a2fcf7093b",
      "cw-b4002dde-cec9-454b-bb4d-a08464dd6eb9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-957f4e3f-8b5c-450e-8ad5-5364e8afc32b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/53219",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b4002dde-cec9-454b-bb4d-a08464dd6eb9"
  }
}