Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/62731",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-de216c23-ea12-47ef-addf-524f34e8c3f1",
      "cw-94a443f7-1bdb-481b-8ad1-fb12cf3f7b51"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-007cc7c0-e65d-4974-9f0a-ae2dcb232e93",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/62731",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-94a443f7-1bdb-481b-8ad1-fb12cf3f7b51"
  }
}