Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/30726",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-05463e49-59e2-4dcd-8669-fa501de24a01",
      "cw-f65d517b-461c-474e-9349-ba9737b8fb45"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3492927a-4b59-4abb-ac87-4d99f3491bb8",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/30726",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f65d517b-461c-474e-9349-ba9737b8fb45"
  }
}