Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/80287",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f23516a8-c69a-460f-a855-e919820a9e36",
      "cw-6d5ca16a-a3be-4f20-95a0-67d92fd205a8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-af41e4b7-bafa-4198-9912-6bac65e7fa24",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/80287",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6d5ca16a-a3be-4f20-95a0-67d92fd205a8"
  }
}