Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/6201",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c01deba8-7584-48de-9c5d-841025c6fecb",
      "cw-54261479-00f4-4112-9bfb-b4892eafa74d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b98e71cb-555e-4355-ac5f-7108071a6437",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/6201",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-54261479-00f4-4112-9bfb-b4892eafa74d"
  }
}