Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/7400",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-38498093-acbf-42fb-bcac-d1b7fdb9adf5",
      "cw-380840ac-9721-4263-95b4-514876ba2119"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f8fb5a8c-0e85-4ab7-b54a-dde5e312cc35",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/7400",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-380840ac-9721-4263-95b4-514876ba2119"
  }
}