Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/581868",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-87c5eb40-0c9d-4db4-a9b6-3149424e35df",
      "cw-357c633b-fa52-43b0-9c9a-28cf021c2572"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9d8b8228-4046-4cc9-807f-2d1446cc44b1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/581868",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-357c633b-fa52-43b0-9c9a-28cf021c2572"
  }
}