Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74369",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3aee3bde-9291-4043-9566-d21e3a6eeb50",
      "cw-c6e46e5f-a81d-420f-ab0c-f491504d0d58"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ce920817-cc1f-48f2-8d0e-ec8dbbfc4218",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74369",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c6e46e5f-a81d-420f-ab0c-f491504d0d58"
  }
}