Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68142",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c763654e-b3f0-4c61-b7c6-34e59472f6db",
      "cw-28d5d6b6-658d-4f7a-a690-dd74e499bab2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1afb36f5-e0a9-4494-8914-1851ddd9a766",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68142",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-28d5d6b6-658d-4f7a-a690-dd74e499bab2"
  }
}