Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/29779",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f17f73c4-fe59-486c-b01d-e8ca28ceae55",
      "cw-752d1298-4b81-4742-9349-e6e13847f36e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-276ac1e4-b781-4028-9301-adc738d3ec8e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/29779",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-752d1298-4b81-4742-9349-e6e13847f36e"
  }
}