Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/70860",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b5bc3bb-a2df-45a4-917c-8aee41474ae3",
      "cw-11110f6d-e82c-486f-abfc-8a73d5fb96cb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-52a857b8-9df3-4ef1-8170-7ae8b5356f8c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/70860",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-11110f6d-e82c-486f-abfc-8a73d5fb96cb"
  }
}