Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39801",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8ba28153-b268-457d-971d-89dd52f507f4",
      "cw-f028878e-b7ea-4c43-b2bf-2570fc181c48"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-43297cb5-38af-4fb6-972b-3bfb96073f6b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39801",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f028878e-b7ea-4c43-b2bf-2570fc181c48"
  }
}