Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/57938",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bf61438b-59f1-4da2-bb65-093d947c1b71",
      "cw-f8f55583-7b4d-4266-9d33-f52b31045b5d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f1f76a4d-f3b7-4ee1-bf72-967f6a880e21",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/57938",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f8f55583-7b4d-4266-9d33-f52b31045b5d"
  }
}