Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81289",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6d045e31-463a-409b-a29c-76ddd15c85a2",
      "cw-14fdfe0a-5cfa-4b85-a6fa-c11bd8ad8250"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-475ccc6b-6b3e-405a-b5e7-fa1f4fd6b9ec",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81289",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-14fdfe0a-5cfa-4b85-a6fa-c11bd8ad8250"
  }
}