Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/49850",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2420708d-9e5d-4c77-b6eb-109287573851",
      "cw-442c5d38-9e55-4ef1-8ef1-41d04d53384c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e7c3ffa3-c80f-4aed-9fd6-19d910ad4dc8",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/49850",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-442c5d38-9e55-4ef1-8ef1-41d04d53384c"
  }
}