Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12955918",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-78d20d2b-f555-4987-b629-b6288619429b",
      "cw-9d6104d1-9799-45ef-804e-6b9695f27220"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3b6ddb3f-3edb-41d4-85d3-c992ec16f9aa",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12955918",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9d6104d1-9799-45ef-804e-6b9695f27220"
  }
}