Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52261",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-17be5681-be28-4741-85f2-754e67f847ae",
      "cw-c0a1af6e-3dca-4142-9000-38b13a9ef8f1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-02a9953d-4591-4916-8711-b12c1e8f86f6",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52261",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c0a1af6e-3dca-4142-9000-38b13a9ef8f1"
  }
}