Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52441",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8ca4cd1f-e71a-4415-81dd-849dceb060be",
      "cw-737c904c-e8bc-4914-9ebf-c2cc7e0438af"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-60ffefc9-5a10-4e9c-82f2-a34b0714f9b1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52441",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-737c904c-e8bc-4914-9ebf-c2cc7e0438af"
  }
}