Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81889",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f9500c56-d6e7-46e4-94d2-4fc219aa22a0",
      "cw-97320c29-5875-4449-9a3f-4f038279e45c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5f2df5e0-e075-4930-b1af-726018c0e284",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81889",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-97320c29-5875-4449-9a3f-4f038279e45c"
  }
}