Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74108",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4b4592bf-bd3c-4009-bd6d-f3277ed0e580",
      "cw-677c8522-75f8-427e-9393-7497c258bdbb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-21dc4f38-838b-46dc-bb2f-803fe1a7bb81",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74108",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-677c8522-75f8-427e-9393-7497c258bdbb"
  }
}