Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39434",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e4279125-a154-44d8-9f60-d27d4710c201",
      "cw-131dd6fd-1491-400d-b55e-9ac7e0c1fe72"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4b4f8b01-9740-449b-92df-98ae95378b1b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39434",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-131dd6fd-1491-400d-b55e-9ac7e0c1fe72"
  }
}