Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/29685",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d172d271-def8-4d13-a0a9-dddcae78d59c",
      "cw-5bd6add1-48b4-40ba-b3dd-ffb72c7e4b5c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6a57cad7-16e7-494e-8d50-f665fb358e1d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/29685",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5bd6add1-48b4-40ba-b3dd-ffb72c7e4b5c"
  }
}