Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/27120",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f0f638f4-69e1-4368-b47b-4a6d02dc3734",
      "cw-be18bee3-243a-4f45-9000-92d6b396e564"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c45cf78e-276f-4394-b496-bb0cf5adc482",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/27120",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-be18bee3-243a-4f45-9000-92d6b396e564"
  }
}