Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/81903",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ab645c10-e8d0-4a7a-8cfa-ba0954308587",
      "cw-5e2dc2cd-3a7b-45f6-a95f-b83f5802fa80"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e9fc836b-629f-42d2-9357-60d0d05cd73c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/81903",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5e2dc2cd-3a7b-45f6-a95f-b83f5802fa80"
  }
}