Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4252998",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-23abd104-a292-4b7d-9c58-4e7afccd4e2e",
      "cw-f7b87175-dca2-43e5-b0cd-7cefa1d5db88"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-495de6db-ece3-4cf7-b6d3-eda83420024d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4252998",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f7b87175-dca2-43e5-b0cd-7cefa1d5db88"
  }
}