Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39301",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6eb66581-5fdc-411b-8446-608d6f853dca",
      "cw-b3f743ee-9036-45d8-a890-7acbb5e2c7e7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fff779cb-b149-49c8-a6cc-d0b3b1d3e4c1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39301",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b3f743ee-9036-45d8-a890-7acbb5e2c7e7"
  }
}