Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/74160",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-90a6ac9a-1c3a-443f-b5e4-9df4702af81e",
      "cw-48f61340-7cab-4dc7-8994-8ac24e7ed8bb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-052e3139-26f6-450b-9c51-b0f982db033c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/74160",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-48f61340-7cab-4dc7-8994-8ac24e7ed8bb"
  }
}