Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81263",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8dc88900-7f14-4539-8d27-e983dcbbc715",
      "cw-3c9d1db5-2cae-4ec6-8daa-955c12076286"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8b5c513a-c7e9-48b1-8b6f-dc5a80a19971",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81263",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3c9d1db5-2cae-4ec6-8daa-955c12076286"
  }
}