Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/3990399",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c1777366-aad2-4c76-b166-8a5fd3dcef85",
      "cw-e2412df1-9518-49b7-a931-01e7ff8c8a7d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2e10ee81-3aa0-4699-8c40-acba9a99e9ce",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/3990399",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e2412df1-9518-49b7-a931-01e7ff8c8a7d"
  }
}