Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/3256",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-214c7d84-8b75-4823-a986-e63ee5f5d67c",
      "cw-6b2713b4-eac2-4861-8ecd-b736f99f2cc2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-842140ff-ab4e-45a5-8bc7-43c5d8bba091",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/3256",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6b2713b4-eac2-4861-8ecd-b736f99f2cc2"
  }
}