Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/15217",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-805f9e69-3660-4aed-ab00-8f1e78e3c2dc",
      "cw-8df2f298-73b1-46e9-ba12-e3790b1e993f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-015cbda3-d28f-4f7d-9a47-b91f2817266a",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/15217",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8df2f298-73b1-46e9-ba12-e3790b1e993f"
  }
}