Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/6956188",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-eba0141a-41c8-4c02-a78b-1ba367c5748e",
      "cw-605861e5-d5f3-4f38-b10c-384cb182a6f4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e6ad9429-6113-4092-a5e3-d569cb21e402",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/6956188",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-605861e5-d5f3-4f38-b10c-384cb182a6f4"
  }
}