Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/75430",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-72d15a62-27bc-4505-83f2-ff506618b3bb",
      "cw-60445a5e-4da7-4213-9c87-f1d31c45006f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1764b1c1-8820-4195-afda-42e8c566d53e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/75430",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-60445a5e-4da7-4213-9c87-f1d31c45006f"
  }
}