Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81781",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2e89ccbb-0308-4980-8032-063525815309",
      "cw-55964156-1c08-4652-a107-8d8139205673"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-52cf395b-064f-443b-a7e5-31b2c82bc780",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81781",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-55964156-1c08-4652-a107-8d8139205673"
  }
}