Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73725",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-07c4b937-722f-4a57-847a-55670d5af005",
      "cw-8074a0f1-dda0-4a8c-a3ff-e11ac39325bb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-10a9aeb5-273a-4f70-b1e5-fbd2246a12b5",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73725",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8074a0f1-dda0-4a8c-a3ff-e11ac39325bb"
  }
}