Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/50220",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-46e53e44-f418-4e59-afd5-e91f4482a023",
      "cw-4037bb89-c9dc-441f-9096-84253339fea1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9331efd2-690c-457f-8e49-6a70775a2a1d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/50220",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4037bb89-c9dc-441f-9096-84253339fea1"
  }
}