Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/66280",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1f59204f-0035-48f7-bf6e-82087fa167f2",
      "cw-4f13e29f-4aa4-4e49-8166-11def1e333b7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4447daa1-c165-4190-8930-d8c808e31d0d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/66280",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4f13e29f-4aa4-4e49-8166-11def1e333b7"
  }
}