Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/20145",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-412b98e4-70dd-4301-bf55-25552cc1c528",
      "cw-1e8afefd-9a40-4652-aed8-b901befc2e15"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0b5584db-d143-4110-b7a5-353e1a4e89b2",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/20145",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1e8afefd-9a40-4652-aed8-b901befc2e15"
  }
}