Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/75538",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6d2c0af2-83d6-4e8f-b884-66c8ffacc5c1",
      "cw-2296d80e-ab4c-4774-8459-3af759bf0534"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fee4b165-8bcf-4f2d-96c5-5b0df0811a84",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/75538",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2296d80e-ab4c-4774-8459-3af759bf0534"
  }
}